Related Documents and Links

• Guidelines for Geologic Timber Harvesting Plans (Note 45)
• Factors Affecting Landslides in Forested Terrain (Note 50)
• Guidelines for Preparing Geologic Reports for Regional Scale Environmental and Resource (Note 52)
• Guidelines for Evaluating and Mitigating Seismic Hazards in California (SP 117)

Landslide Maps Available from the
California Geological Survey

Introduction

Since 1969, the California Geological Survey has produced numerous maps showing landslide features and delineating potential slope-stability problem areas. There are six principal types of landslide-related maps and reports. Four of these types are advisory in nature:

• Landslide Hazard Identification Maps–Typically 1:24,000 in scale, comprised of three types of maps (landslide features, landslide susceptibility and debris-flow susceptibility). Produced from 1986 through 1995, as directed by the now-repealed Landslide Hazard Mapping Act. 
   

• Watershed Maps–Typically 1:24,000 in scale, landslide features maps developed to assist in timber harvest planning and water quality protection. Some maps have overprints indicating steepness of slopes. All are indexed in CGS Note 40 and Special Publication 120. Most are available for downloading in PDF format or on CD-ROM with GIS data. Click here to learn more..
   

• "Geology for Planning" Products–Maps and accompanying reports that detail landslide features. Most of these products were produced at the request of city, county, or state agencies on a cost-sharing basis. Each product is uniquely designed to meet the needs of the contracting agency. Scale and map content vary. Most show landslide features and geology; some show landslide susceptibility.
   

• Regional Geologic Maps–Scales vary. These principally are geologic maps; some show selected landslide features.
   

• Seismic Hazard Zone Maps–These are 1:24,000-scale regulatory maps issued under the Seismic Hazard Mapping Act. Unlike the other maps listed herein, where potential earthquake-induced landslide hazards have been zoned, site-specific assessments of landslide hazards are required by law prior to development. Technical reports detailing location of landslide deposits, slope, rock strength, and other factors on which the regulatory maps are based will be available in the near future.
  Note: For Landslide Maps and Reports produced by or related to the Seismic Hazard Mapping Program (SHMP) please click here.

• Landslide Inventory Maps
  

A sixth landslide-related product consists of reports and maps that document landslide occurrences following major disasters or significant events. Summaries published as articles in CALIFORNIA GEOLOGY magazine are not included in the list below. Summaries published as monographs are included in the list that follows.

How to Order These Maps and Reports

Seismic Hazard Zone Maps are available in several formats. GIS data may be downloaded from the Seismic Hazards Zonation Program. Paper copies are available from BPS Reprographic Services, 945 Bryant Street, San Francisco, CA 94103, telephone (415) 495-8700. Maps must be ordered by quadrangle name.

All other CGS landslide products may be ordered pre-paid directly from the California Geological Survey Publications Office, 801 K Street, MS 14-34, Sacramento, CA 95814. CGS accepts MasterCard or VISA.  Please use product number when ordering. For information on ordering, click here. For current prices, see the CGS Publications database. 

Some of the maps and reports listed below are PDF files and require Acrobat Reader to view and download.

Landslide-Related Maps and Reports

Alameda County

• Official Maps of Seismic Hazard Zones that show zones of required investigations for landslide hazards.

• Landslide Hazards in the Livermore Valley and Vicinity, Alameda and Contra Costa Counties, California, Landslide Hazard Identification Map No. 21, by Majmundar, H.H. , scale 1:24,000. DMG OFR 91-02.

• Landslide Hazards in the Tassajara and Byron Hot Springs 7½-Minute Quadrangles, Alameda and Contra Costa Counties, California, Landslide Hazards Identification Map No. 27, by Majmundar, H.H., scale 1:24,000. DMG OFR 92-05.

• Landslide Hazards in the Hayward Quadrangle and Parts of the Dublin Quadrangle, Alameda and Contra Costa Counties, California, Landslide Hazards Identification Map No. 37, by Majmundar, H.H., scale 1:24,000. DMG OFR 95-14.

• Landslide Hazards in the Las Trampas Ridge Quadrangle and Parts of the Diablo Quadrangle, Alameda and Contra Costa Counties, California, Landslide Hazards Identification Map No. 38, by Majmundar, H.H., scale 1:24,000. DMG OFR 95-15.

Amador County

• Geologic and Geomorphic Features Related to Landsliding and Relative Landslide Susceptibility Categories, North Fork Mokelumne River, Amador County, California, by McKittrick, M.A., scale 1:24,000. DMG OFR 95-06.

Calaveras County

• Geology of the Calaveras Big Trees State Park, Calaveras and Tuolumne Counties, California, by Leivas, E.M. DMG OFR 84-05.

Colusa County

• Landslides and Geology Along Cache Creek Between Clear Lake and Capay Valley, Colusa, Lake, and Yolo Counties, California, Landslide Hazards Identification Map No. 19, by Manson, M.W., scale 1:24,000. DMG OFR 89-30.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120.

Contra Costa County

• Geology and Slope Stability of the Southwest Quarter of the Walnut Creek [7.5'] Quadrangle, Contra Costa County, California, by Saul, R.B., 1973, scale 1:12,000. MS 016.

• Geological and Geophysical Investigations for Tri-Cities (El Cerrito, Richmond and San Pablo) Seismic Safety [Contra Costa County, California], by Bishop, C.C. and Chase, G.W., 1973. PR 019.

• Landslide Hazards in Parts of the Diablo and Dublin [7.5'] Quadrangles, Contra Costa County, California, Landslide Hazard Identification Map No. 3, by Davenport, C.W., scale 1:24,000. DMG OFR 86-07.

• Landslide Hazards in the Livermore Valley and Vicinity, Alameda and Contra Costa Counties, California, Landslide Hazard Identification Map No. 21, by Majmundar, H.H. , scale 1:24,000. DMG OFR 91-02.

• Landslide Hazards in the Martinez-Orinda Walnut Creek Area, Contra Costa County, California, Landslide Hazards Identification Map No. 32, by Haydon, W.D., scale 1:24,000. DMG OFR 95-12.

• Landslide Hazards in the Hayward Quadrangle and Parts of the Dublin Quadrangle, Alameda and Contra Costa Counties, California, Landslide Hazards Identification Map No. 37, by Majmundar, H.H., scale 1:24,000. DMG OFR 95-14.

• Landslide Hazards in the Las Trampas Ridge Quadrangle and Parts of the Diablo Quadrangle, Alameda and Contra Costa Counties, California, Landslide Hazards Identification Map No. 38, by Majmundar, H.H., scale 1:24,000. DMG OFR 95-15.

  Del Norte County

• Geology for Planning: Crescent City and Sister Rocks [7.5'] Quadrangles, Del Norte County, California, by Kilbourne, R.T. and Maulchin, L., scale 1:24,000. DMG OFR 81-01.

• Geology and Geomorphic Features Related to Landsliding, Crescent City [7.5'] Quadrangle, Del Norte County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 82-21 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Hiouchi [7.5'] Quadrangle, Del Norte County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 83-04 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, High Divide [7.5'] Quadrangle, Del Norte County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 83-18 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Smith River [7.5'] Quadrangle, Del Norte County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 83-19 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Child's Hill [7.5'] Quadrangle, Del Norte County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 84-07 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Requa [7.5'] Quadrangle, Del Norte County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 84-08 (Map Only).

• North Coast Watershed Mapping, by DMG staff. DMG CD 99-02 (CD-ROM with GIS and Acrobat versions of DMG's Watershed Maps. These data also may be downloaded for free from our web site.

• Landslides in the Highway 101 Corridor between Wilson Creek and Crescent City, Del Norte County, California, by C.J. Wills, 2000, California Geological Survey, Special Report 184 - 24 pgs.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

El Dorado County

• Landsliding Along the Highway 50 Corridor: Geology and Slope Stability of the American River Canyon Between Riverton and Strawberry [El Dorado County], California, by Wagner, D.L. and Spittler, T.E., 1997, scale 1:12,000. DMG OFR 97-22.

Glenn County

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120.

Humboldt County

• Maps, GIS Data and Geologic Report for Watersheds Mapping Series, Map Set 4, Elk River Watershed, Humboldt County, California. Click here for description and download.

• Maps, GIS Data and Geologic Report for Watersheds Mapping Series, Map Set 7, Mattole River Watershed, Humboldt and Mendocino Counties, California.

• Maps, GIS Data and Geologic Report for Watersheds Mapping Series, Map Set 6, Redwood Creek Watershed, Humboldt County, California.

• Geology for Planning: Eureka and Fields Landing [7.5'] Quadrangles, Humboldt County, California, by Kilbourne, R.T. and others. DMG OFR 80-09.

• Geology and Geomorphic Features Related to Landsliding, Scotia NE [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 82-20 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Bull Creek [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 83-03 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Weott [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 83-06 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Redcrest [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 83-17 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Myers Flat [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 83-22 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Bridgeville [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 83-23 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Miranda [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 83-25 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Garberville [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 83-26 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Harris [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 84-09 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Briceland [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 84-10 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Honeydew [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 84-11 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Capetown [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 84-34 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Ferndale [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 84-35 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Taylor Peak [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 84-36 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Buckeye Mtn [7.5'] Quadrangle, Humboldt County, California, by Spittler, T.E., scale 1:24,000. DMG OFR 84-37 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Arcata North [7.5'] Quadrangle, Humboldt County, California, by Kelley, F.R., scale 1:24,000. DMG OFR 84-38 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Arcata South [7.5'] Quadrangle, Humboldt County, California, by Kelley, F.R., scale 1:24,000. DMG OFR 84-39 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Fortuna [7.5'] Quadrangle, Humboldt County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 85-01 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Hydesville [7.5'] Quadrangle, Humboldt County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 85-02 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Mcwhinney Creek [7.5'] Quadrangle, Humboldt County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 85-03 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Fields Landing [7.5'] Quadrangle, Humboldt County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 85-04 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Korbel [7.5'] Quadrangle, Humboldt County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 85-05 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Blue Lake [7.5'] Quadrangle, Humboldt County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 85-06 (Map Only).

• Landslides in the Highway 299 Corridor Between Blue Lake and Willow Creek, Humboldt County, California, by J.N. Falls, C.J. Wills and B.C. Hardin, 2006, California Geological Survey, Special Report 195, 59 pgs.

• Geologic and geomorphic features related to landsliding, Freshwater Creek, Humboldt County, California, by Falls, J.N. DMG OFR 99-10 & 99-10a, click here for digital map.

• North Coast Watershed Mapping, by DMG staff. DMG CD 99-02 (CD-ROM with GIS and Acrobat versions of DMG's Watershed Maps. These data also may be downloaded for free from our web site.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Lake County

• Landslide Hazards in the Eastern Clear Lake Area, Lake County, California, Landslide Hazards Identification Map No. 16, by Manson, M.W. DMG OFR 89-27.

• Landslides and Geology Along Cache Creek Between Clear Lake and Capay Valley, Colusa, Lake, and Yolo Counties, California, Landslide Hazards Identification Map No. 19, by Manson, M.W., scale 1:24,000. DMG OFR 89-30.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120.

Los Angeles County

• Official Maps of Seismic Hazard Zones that show zones of required investigations for landslide hazards.

• Preliminary Reconnaissance Map of Major Landslides, San Gabriel Mountains, Los Angeles County, California, by Morton, D.M. and others, 1969, scale 1:62,500. MS 015.

• Geology of the Northeast Part of the Palos Verdes Hills, Los Angeles County, California, by Cleveland, G.B., 1976, scale 1:12,000. MS 027.

• Geology of the West Central Part of the Mt. Wilson [7.5'] Quadrangle, San Gabriel Mountains, Los Angeles County, by Saul, R.B., 1976, scale 1:12,000. MS 028.

• Geology of the Southeast Quarter of the Oat Mountain [7.5'] Quadrangle, Los Angeles County, California, by Saul, R.B., 1979, scale 1:12,000. MS 030.

• Geology of the Southwestern Part of the Oat Mountain [7.5'] Quadrangle, Los Angeles County, California, by Evans, J.R. and others, 1978, scale 1:12,000. MS 033.

• Slope Stability and Geology of the Baldwin Hills, Los Angeles County, California, by Weber, F.H. and others, Eds., 1982, SR 152.

• Preliminary Geologic Map of the Southwest Quarter of the Glendora [7.5'] Quadrangle, Los Angeles County, California, by Streitz, R., scale 1:9,600. DMG OFR 64-01 (Map Only).

• Preliminary Geologic Map of the Southeast Quarter of the Glendora [7.5'] Quadrangle, Los Angeles County, California, by Streitz, R., scale 1:9,600. DMG OFR 66-01 (Map Only).

• Effects On Southern California of the Rains of February 13-21, 1980, Los Angeles, Orange, Riverside, and Ventura Counties, California, by Weber, F.H. DMG OFR 80-03.

• February-March 1978 Rains in the Los Angeles Region; [Los Angeles, Orange, Riverside, San Bernardino, and Ventura Counties], Southern California, by Weber, F.H. and others. DMG OFR 79-04.

• Investigation and Inventory of Slope Failures That Occurred in 1978 and 1980 in the Los Angeles [7.5'] Quadrangle, Los Angeles County, California, by Hsu, E.Y. DMG OFR 82-26.

• Map Showing Landslides of the Central and Western Santa Monica Mountains, Los Angeles and Ventura Counties, California, by Weber, F.H., Jr. and Wills, C.J., scale 1:4,800. DMG OFR 83-16 (Map Only).

• Geology of the South Half of the Mint Canyon [7.5'] Quadrangle, Los Angeles County, California, by Saul, R.B., scale 1:9,600. DMG OFR 83-24.

• Geology of the Calabasas-Agoura-Eastern Thousand Oaks Area, Los Angeles and Ventura Counties, California, by Weber, F.H., Jr., scale 1:24,000. DMG OFR 84-01.

• Geology of the Northeast Quarter of the Newhall [7.5'] Quadrangle, Los Angeles County, California, by Smith, D.P., scale 1:96,000. DMG OFR 84-49.

• Geology of the North Half of the Pasadena [7.5'] Quadrangle, Los Angeles County, California, by Smith, D.P., scale 1:12,000. DMG OFR 86-04.

• Landslide Hazards in the West Half of the Newhall [7.5'] Quadrangle, Los Angeles County, California, Landslide Hazard Identification Map No. 2, by Treiman, J.A, scale 1:24,000. DMG OFR 86-06.

• Landslide Hazards in the East Half of the Val Verde [7.5'] Quadrangle, Los Angeles County, California, Landslide Hazard Identification Map No. 5, by Barrows, A.G., scale 1:24,000. DMG OFR 86-09.

• Landslide Hazards in the East Half of the Newhall [7.5'] Quadrangle, Los Angeles County, California, Landslide Hazard Identification Map No. 7, by Treiman, J.A., scale 1:24,000. DMG OFR 86-16.

• Landslide Hazards in the North Half of the Oat Mountain [7.5'] Quadrangle, Los Angeles County, California, Landslide Hazard Identification Map No.10, by Treiman, J.A., scale 1:24,000. DMG OFR 87-08.

• Landslide Hazards in the Puente and San Jose Hills, Southern California, Los Angeles, Orange, and San Bernardino Counties, California, Landslide Hazards Identification Map No. 12, by Tan, S.S., scale 1:24,000. DMG OFR 88-21.

• Landslide Hazards in the North Half of the Calabasas Quadrangle, Los Angeles and Ventura Counties, California, Landslide Hazards Identification Map No. 20, by Irvine, P.J., scale 1:24,000. DMG OFR 89-18.

• Landslide Hazards in the Simi Valley Area, Los Angeles and Ventura Counties, California, Landslide Hazard Identification Map No. 22, by Irvine, P.J. DMG OFR 90-17.

• Geologic Effects of the Northridge Earthquake of January 17, 1994 in the Southern Part of the Van Nuys Quadrangle, Los Angeles County, California, by Tan, S.S., scale 1:12,000. DMG OFR 95-02.

• Landslide Hazards in the Southern Part of the Van Nuys Quadrangle, Los Angeles County, California, Landslide Hazards Identification Map No. 39, by Tan, S.S., scale 1:12,000. DMG OFR 95-13.

• Reconnaissance Seismic Hazard Maps of Portions of Los Angeles and Ventura Counties, California, by Real, C.R. and others, scale 1:24,000. DMG OFR 96-01.

• Landslides in the Interstate 5 Corridor between Valencia and Gorman, Los Angeles County, California, by B.D. Foster, 2003, California Geological Survey, Special Report 188, 23 pgs.

• Landslide Inventory Map of the Palos Verdes Peninsula, Los Angeles County California, 2007, by Wayne D. Haydon, California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Acton Quadrangle, Los Angeles County, California, 2006, by Janis L. Hernandez, California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Agua Dulce Quadrangle, Los Angeles County, California, 2006, by Janis L. Hernandez, California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Burbank Quadrangle, Los Angeles County, California, 2007, by J. A. Treiman and C.J. Wills, California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Pasadena Quadrangle, Los Angeles County, California, 2007, by J. A. Treiman and C.J. Wills, California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Mt. Wilson Quadrangle, Los Angeles County, California, 2007, by J. A. Treiman and C.J. Wills, California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Azusa Quadrangle, Los Angeles County, California, 2007, by J. A. Treiman and C.J. Wills, California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Glendora Quadrangle, Los Angeles County, California, 2007, by J. A. Treiman and C.J. Wills, California Geological Survey, Landslide Inventory Map Series
  

Marin County

• Geology for Planning: Central and Southeast Marin County, California, by Rice, S.J. and others. DMG OFR 76-02.

• Geology for Planning in Western Marin County, California, by Wagner, D.L. DMG OFR 77-15.

• An Analysis of Slope Failures in Eastern Marin County, California, Resulting From the January 3 and 4, 1982 Storm, by Davenport, C.W. DMG OFR 84-22.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Mendocino County

• Maps, GIS Data and Geologic Report for Watersheds Mapping Series, Map Set 8, Albion River Watershed, Mendocino County, California. Click here for description and download.

• Maps, GIS Data and Geologic Report for Watersheds Mapping Series, Map Set 5, Gualala River Watershed, Sonoma and Mendocino Counties, California.

• Maps, GIS Data and Geologic Report for Watersheds Mapping Series, Map Set 7, Mattole River Watershed, Humboldt and Mendocino Counties, California.

• Maps for Watersheds Mapping Series, Map Set 1, Noyo River Watershed, Mendocino County, California. Contains both geomorphic and geologic features. Click here for description and download.

  Maps for Watersheds Mapping Series, Map Set 2, Jackson Demonstration State Forest, Mendocino County, California. Contains both geomorphic and geologic features. Click here for description and download.

• Geologic Factors in Coastal Zone Planning: Schooner Gulch to Gualala River, Mendocino County, California, by Williams, J.W. and Bedrossian, T.L. DMG OFR 76-03. (See PR 016 and PR 020).

• Geologic Factors in Coastal Zone Planning: Russian Gulch to Buckhorn Cove, Mendocino County, California, by Williams, J.W. and Bedrossian, T.L. DMG OFR 76-04.. (See PR 016 and PR 020.)

• Geology and Geomorphic Features Related to Landsliding, Glenblair NE (Northspur) [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 82-19 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Glenblair NW (Noyo Hill) [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 82-25 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Fort Bragg [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 83-05 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Mendocino [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 83-15 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Glenblair SW (Mathison Peak) [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 83-20 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Glenblair SE (Comptche) [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 83-21 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Inglenook [7.5'] Quadrangle, Mendocino County, California, by Kelley, F.R., scale 1:24,000. DMG OFR 83-31 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Westport [7.5'] Quadrangle, Mendocino County, California, by Kelley, F.R., scale 1:24,000. DMG OFR 83-32 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Dutchman's Knoll [7.5'] Quadrangle, Mendocino County, California, by Kelley, F.R., scale 1:24,000. DMG OFR 83-33 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Sherwood Peak [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 83-38 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Cahto Peak [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 83-39 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Leggett [7.5'] Quadrangle, Mendocino County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 83-40 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Noble Butte [7.5'] Quadrangle, Mendocino County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 83-41 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Elk [7.5'] Quadrangle, Mendocino County, California, by Manson, M.W., scale 1:24,000. DMG OFR 84-12 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Mallo Pass Creek (7.5'] Quadrangle, Mendocino County, California, by Manson, M.W., scale 1:24,000. DMG OFR 84-13 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Lincoln Ridge (7.5'] Quadrangle, Mendocino County, California, by Kelley, F.R., scale 1:24,000. DMG OFR 84-14 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Hales Grove [7.5] Quadrangle, Mendocino County, California, by Kelley, F.R., scale 1:24,000. DMG OFR 84-15 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Piercy [7.5] Quadrangle, Mendocino County, California, by Kelley, F.R., scale 1:24,000. DMG OFR 84-16 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Tan Oak Park [7.5'] Quadrangle, Mendocino County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 84-17 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Longvale [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 84-18 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Willits NW (Burbeck) [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 84-19 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Willits SW (Greenough Ridge) [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 84-20 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Iron Peak [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 84-40 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Laytonville NE (Laytonville) [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 84-41 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Boonville NW (Bailey Ridge) [7.5'] Quadrangle, Mendocino County, California, by Kilbourne, R.T., scale 1:24,000. DMG OFR 84-42 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Boonville SW (Philo) [7.5'] Quadrangle, Mendocino County, California, by Manson, M.W., scale 1:24,000. DMG OFR 84-43 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Navarro NE (Navarro) [7.5'] Quadrangle, Mendocino County, California, by Manson, M.W., scale 1:24,000. DMG OFR 84-44 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Navarro SE (Cold Spring) [7.5'] Quadrangle, Mendocino County, California, by Manson, M.W., scale 1:24,000. DMG OFR 84-45 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Point Arena NW (Point Arena) [7.5'] Quadrangle, Mendocino County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 84-46 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Point Arena NE (Eureka Hill) [7.5'] Quadrangle, Mendocino County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 84-47 (Map Only).

• Geology and Geomorphic Features Related to Landsliding, Gualala, [7.5] Quadrangle, Mendocino County, California, by Davenport, C.W., scale 1:24,000. DMG OFR 84-48 (Map Only).

• Landslide and Engineering Geology of the Western Ukiah Area, Central Mendocino County, California, Landslide Hazard Identification Map No. 24, by Sydnor, R.H. and Sowma-Bawcom, J.A., scale 1:6,000. DMG OFR 91-16.

• Geologic and Geomorphic Features Related to Landsliding and Relative Landslide Susceptibility Categories, North Fork Guala River, Mendocino County, California, by McKittrick, M.A., scale 1:24,000. DMG OFR 95-05.

• Geologic and Geomorphic Features Related to Landsliding, North and South Forks of Casper Creek, Mendocino County, California, by T.E Spittler and McKittrick, M.A., scale 1:12,000. DMG OFR 95-08.

• North Coast Watershed Mapping, by DMG staff. DMG CD 99-02 (CD-ROM with GIS and Acrobat versions of DMG's Watershed Maps. These data also may be downloaded for free from our web site.

• Landslides in the Highway 101 Corridor between Leggett and Piercy, Mendocino County, California, by M.W. Manson, C.W. Davenport, C.J. Domrose and C.J. Wills, 2003, California Geological Survey, Special Report 187,  32 pgs.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Monterey County

• Analysis of Erosion Following the Marble Cone Fire, Big Sur Basin, Monterey County, California, by Cleveland, G.B. DMG OFR 77-12. (See CALIFORNIA GEOLOGY magazine, 12/77)

• Geology for Planning: Marina and Salinas [7.5'] Quadrangles, Monterey County, California, by Kilbourne, R.T. and Maulchin, L. DMG OFR 80-07.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately

• Landslides in the Highway 1 Corridor: Geology and Slope Stability along the Big Sur Coast between Point Lobos and San Carpoforo Creek, Monterey and San Luis Obispo Counties, California, by C.J. Wills, M.W. Manson, K.D. Brown, C.W. Davenport and C.J. Domrose, 2001, California Geological Survey, Special Report 185, 40 pgs.

Napa County

• Landslide Hazards in the Cordelia-Vallejo Area, Napa and Solano Counties, California, Landslide Hazards Identification Map No. 13, by Manson, M.W., 1988, scale 1:24,000. DMG OFR 88-22.

  Landslide Hazard Maps of Southwest Napa County, California, by Wills, C.J. and H.H. Majmundar, 1999 2 plates, scale 1:24,000. DMG OFR 99-06.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Orange County

• Official Maps of Seismic Hazard Zones that show zones of required investigations for landslide hazards.

• Natural Slope Stability As Related to Geology, San Clemente Area, Orange and San Diego Counties, California, by Blanc, R.P. and Cleveland, G.B., 1968, SR 098.

• Geology of the South Half of the El Toro [7.5'] Quadrangle, Orange County, California, by Fife, D.L., 1974, scale 1:24,000, SR 110.

• Geology and Engineering Geologic Aspects of the South Half of the Cañada Gobernadora [7.5'] Quadrangle, Orange County, California, by Morton, P.K., 1974, scale 1:24,000, SR 111.

• Geology and Engineering Geologic Aspects of the South Half of the Tustin Quadrangle, Orange County, California, by Miller, R.V. and Tan, S.S., 1976, SR 126.

• Geology and Engineering Geologic Aspects of the Laguna Beach Quadrangle, Orange County, California, by Tan, S.S. and Edgington, W.J., 1976, scale 1:24,000, SR 127.

• Effects On Southern California of the Rains of February 13-21, 1980, Los Angeles, Orange, Riverside, and Ventura Counties, California, by Weber, F.H. DMG OFR 80-03.

• February-March 1978 Rains in the Los Angeles Region; [Los Angeles, Orange, Riverside, San Bernardino, and Ventura Counties], Southern California, by Weber, F.H. and others. DMG OFR 79-04.

• Environmental Geology of Orange County, California, by Morton, P.K. and others. DMG OFR 79-08.

• Geologic Map of Part of the South Half of the Black Star Canyon [7.5'] Quadrangle, Orange County, California, by Miller, R.V. and Tan, S.S., scale 1:12,000. DMG OFR 83-34 (Map Only).

• Environmental Geology of Parts of the La Habra, Yorba Linda, and Prado Dam [7.5'] Quadrangles, Orange County, California, by Tan, S.S. and others. DMG OFR 84-24.

• Inventory and Analysis of Recent Damaging Slope Failures and Debris Flooding, Southern Coastal Orange County, California, by Tan, S.S. and Weber, F.H., Jr. DMG OFR 84-27.

• Engineering Geology of the North Half of the El Toro [7.5'] Quadrangle, Orange County, California, by Tan, S.S. and others, scale 1:12,000. DMG OFR 84-28.

• Classification of Landslide Propensity in the Dana Point [7.5'] Quadrangle, Orange County, California, by Tan, S.S. DMG OFR 84-57.

• Engineering Geology of Part of the Western Half of the Santiago Peak [7.5'] Quadrangle, Orange County, California, by Miller, R.V. and Morton, P.K., scale 1:12,000. DMG OFR 84-58.

• Landslide Hazards in the Puente and San Jose Hills, Southern California, Los Angeles, Orange, and San Bernardino Counties, California, Landslide Hazards Identification Map No. 12, by Tan, S.S., scale 1:24,000. DMG OFR 88-21.

• Landslide Hazards in the North Half of the Black Star Canyon [7.5-Minute] Quadrangle, Orange and Riverside Counties, California, Landslide Hazard Identification Map No. 17, by Tan, S.S., scale 1:24,000. DMG OFR 90-19.

• Landslide Hazards in the Orange Quadrangle, Orange County, California, Landslide Hazards Identification Map No. 34, by Tan, S.S., scale 1:12,000. DMG OFR 95-11.

Riverside County

• Official Maps of Seismic Hazard Zones that show zones of required investigations for landslide hazards.

• Effects On Southern California of the Rains of February 13-21, 1980, Los Angeles, Orange, Riverside, and Ventura Counties, California, by Weber, F.H. DMG OFR 80-03.

• February-March 1978 Rains in the Los Angeles Region; [Los Angeles, Orange, Riverside, San Bernardino, and Ventura Counties], Southern California, by Weber, F.H. and others. DMG OFR 79-04.

• Landslide Hazards in the North Half of the Black Star Canyon [7.5-Minute] Quadrangle, Orange and Riverside Counties, California, Landslide Hazard Identification Map No. 17, by Tan, S.S., scale 1:24,000. DMG OFR 90-19.

• Landslides in the Highway 60 Corridor San Timoteo Badlands Riverside County, California by M.W. Manson, C.W. Davenport, K.D. Brown, C.J. Wills, and C.J. Domrose, 2002, California Geological Survey Special Report 186, 21 pgs.
  

San Benito County

• Landslide Hazards in the Hollister Area, San Benito County, California, Landslide Hazards Identification Map No. 30, by Majmundar, H.H., 1994, scale 1:24,000. DMG OFR 94-02.

• Landslide Hazards in the Tres Pinos and Paicenes Area, San Benito County, California, Landslide Hazards Identification Map No. 31, by Majmundar, H.H.,1994, scale 1:24,000. DMG OFR 94-03.

San Bernardino County

• Landsliding and Mudflows At Wrightwood, San Bernardino County, California, by Morton, D.M. and others, 1979, SR 136.

• February-March 1978 Rains in the Los Angeles Region; [Los Angeles, Orange, Riverside, San Bernardino, and Ventura Counties], Southern California, by Weber, F.H. and others. DMG OFR 79-04.

• Landslide Hazards in the Puente and San Jose Hills, Southern California, Los Angeles, Orange, and San Bernardino Counties, California, Landslide Hazards Identification Map No. 12, by Tan, S.S., scale 1:24,000. DMG OFR 88-21.

• Landslide Hazards in the Lake Arrowhead and Big Bear Lake Region, San Bernardino County, California: Landslide Hazards Identification Map No. 15, by Tan, S.S. , scale 1:24,000. DMG OFR 89-07.

• Landslide Hazards in the Yucaipa and Forest Falls [7.5] Quadrangles, San Bernardino County, California, Landslide Hazard Identification Map No. 18, by Tan, S.S. DMG OFR 90-05.

• Rockfall and Stream-Related Debris-Flows Hazards of the Forest Falls Area, San Bernardino County, California, Landslide Hazards Identification Map No. 43, by Tan, S.S. and Giffen, D.G., scale 1:48,000. DMG OFR 95-17.

San Diego County

• Geology of National City, Imperial Beach and Otay Mesa Quadrangles, Southern San Diego Metropolitan Area, by Kennedy, M.P. and others, 1977, scale 1:24,000, MS 029.

• Natural Slope Stability As Related to Geology, San Clemente Area, Orange and San Diego Counties, California, by Blanc, R.P. and Cleveland, G.B., 1968, SR 098.

• Geology for Planning: Imperial Beach [7.5'] Quadrangle, San Diego County, California, by Bushnell, M.M. and others. DMG OFR 80-16.

• Recent Slope Failures, Ancient Landslides, and Related Geology of the North-Central Coastal Area, San Diego County, California, by Weber, F.H. DMG OFR 82-12.

• Landslide Hazards in the Encinitas [7.5'] Quadrangle, San Diego County, California, Landslide Hazard Identification Map No. 4, by Tan, S.S., scale 1:24,000. DMG OFR 86-08.

• Landslide Hazards in the Rancho Santa Fe [7.5'] Quadrangle, San Diego County, California: Landslide Hazard Identification Map No. 6, by Tan, S.S., scale 1:24,000. DMG OFR 86-15.

• Landslide Hazards in the San Vincente [7.5'] Quadrangle, San Diego County, California, Landslide Hazard Identification Map No. 25, by Tan, S.S., scale 1:24,000. DMG OFR 92-04.

• Landslide Hazards in theEl Cajon [7.5'] Quadrangle, San Diego County, California, Landslide Hazard Identification Map No. 28, by Tan, S.S., scale 1:24,000. DMG OFR 92-11.

• Landslide Hazards in the Jumul [7.5'] Quadrangle, San Diego County, California, Landslide Hazard Identification Map No. 29, by Tan, S.S., scale 1:24,000. DMG OFR 92-12.

• Landslide Hazards in the Southern Part of the San Diego Metropolitan Area, San Diego County, California, Landslide Hazards Identification Map No. 33, by Tan, S.S., scale 1:24,000. DMG OFR 95-03.

• Landslide Hazards in the Northern Part of the San Diego Metropolitan Area, San Diego County, California, Landslide Hazards Identification Map No. 35, by Tan, S.S. and Giffen, D.G., scale 1:24,000. DMG OFR 95-04.

• Geologic Maps of the Northwestern Part of San Diego County, California, by Tan, S.S., scale 1:24,000. DMG OFR 96-02.

San Luis Obispo County

• Geologic Map of the Point Buchon Area, San Luis Obispo County, California, by Cleveland, G.B., scale 1:24,000. DMG OFR 78-17.

• Geology for Planning: Guadalupe and Point Sal [7.5'] Quadrangles, Santa Barbara and San Luis Obispo Counties, California, by Kilbourne, R.T. and Maulchin, L. DMG OFR 80-05.

• Geology for Planning: Cayucos and Cypress Mountain [7.5'] Quadrangles, San Luis Obispo County, California, by Kilbourne, R.T. and Maulchin, L. DMG OFR 80-06.

• Landsliding in Marine Terrace Terrain, California, by Cleveland, G.B., 1975, SR 119.

• Landslides in the Highway 1 Corridor: Geology and Slope Stability along the Big Sur Coast between Point Lobos and San Carpoforo Creek, Monterey and San Luis Obispo Counties, California, by C.J. Wills, M.W. Manson, K.D. Brown, C.W. Davenport and C.J. Domrose, 2001, California Geological Survey, Special Report 185, 40 pgs.

San Mateo County

• Official Maps of Seismic Hazard Zones that show zones of required investigations for landslide hazards.

• Landslides and Other Geologic Features in the Santa Cruz Mountains [Santa Cruz, Santa Clara, and San Mateo Counties], California, Resulting From the Loma Prieta Earthquake of October 17, 1989, by Manson, M.W. and others. DMG OFR 91-05.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Santa Barbara County

• Geology for Planning: Guadalupe and Point Sal [7.5'] Quadrangles, Santa Barbara and San Luis Obispo Counties, California, by Kilbourne, R.T. and Maulchin, L. DMG OFR 80-05.

• Landslide Hazard Maps of the Eastern Santa Ynez Valley, Santa Barbara County, California, by Wills, C.J. and S. Bezore, 2 plates, scale 1:24,000. DMG OFR 99-13.

• Landslide Hazard Maps of Southeastern Santa Barbara County, California, 1999, by Wills, C.J. and S. Bezore4 plates, scale 1:24,000. DMG OFR 99-12.

• Landsliding in Marine Terrace Terrain, California, by Cleveland, G.B., 1975, SR 119.

Santa Clara County

• Landslide Inventory Map of the Morgan Hill Quadrangle, Santa Clara County California, 2006, by M.O. Wiegers. California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Santa Teresa Hills Quadrangle, Santa Clara County California, 2006, by M.O. Wiegers. California Geological Survey, Landslide Inventory Map Series

• Landslide Inventory Map of the Mt. Sizer Quadrangle, Santa Clara County California, 2006, by Marc Delattre  California Geological Survey, Landslide Inventory Map Series

• Official Maps of Seismic Hazard Zones that show zones of required investigations for landslide hazards.

• Environmental Geologic Analysis of the Monte Bello Ridge Mountain Study Area [Santa Clara County], by Rogers, T.H. and Armstrong, C.F., 1973. PR 017.

• Environmental Geologic Analysis of the South County Study Area (Santa Clara County, California), by Williams, J.W. and others, 1973. PR 018.

• Environmental Geologic Analysis of the Diablo Range Study Area I, Southern Santa Clara County, California, by Armstrong, C.F. and Wagner, D.L. DMG OFR 78-11.

• Environmental Geologic Analysis of the Diablo Range Study Area II, Southern Santa Clara County, California, by Wagner, D.L. DMG OFR 78-12.

• Environmental Geologic Analysis of the Tar Creek South Study Area, Santa Clara County, California, by Armstrong, C.F. DMG OFR 80-11.

• Preliminary Map of Landslide Features and Coseismic Fissures in the Summit Road Area of the Santa Cruz Mountains [Santa Cruz and Santa Clara Counties] Triggered by the Loma Prieta Earthquake of 17 October, 1989, by Spittler, T.E. and Hart, E.W. DMG OFR 90-06.

• Landslides and Other Geologic Features in the Santa Cruz Mountains [Santa Cruz, Santa Clara, and San Mateo Counties], California, Resulting from the Loma Prieta Earthquake of October 17, 1989, by Manson, M.W. and others. DMG OFR 91-05.

• Potential seismic hazards in Santa Clara County, California, by Rogers, T.H. and Willams, J.W., 1974. SR 107: [out of print]

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Santa Cruz County

• Geology of the Big Basin Redwoods State Park, Santa Cruz County, California, by McJunkin, R.D. DMG OFR 84-06.

• Preliminary Map of Landslide Features and Coseismic Fissures in the Summit Road Area of the Santa Cruz Mountains [Santa Cruz and Santa Clara Counties] Triggered By the Loma Prieta Earthquake of 17 October, 1989, by Spittler, T.E. and Hart, E.W. DMG OFR 90-06.

• Landslides and Other Geologic Features in the Santa Cruz Mountains [Santa Cruz, Santa Clara, and San Mateo Counties], California, Resulting From the Loma Prieta Earthquake of October 17, 1989, by Manson, M.W. and others. DMG OFR 91-05.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Siskiyou County

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Solano County

• Landslide Hazards in the Benicia-Vallejo Area, Solano County, California, Landslide Hazard Identification Map No. 8, by Bortugno, E.J., scale 1:24,000. DMG OFR 86-17.

• Landslide Hazards in the South Half of the Fairfield North [7.5'] Quadrangle, Solano County, California, Landslide Hazard Identification Map No. 11, by Majmundar, H.H., scale 1:24,000. DMG OFR 87-09.

• Landslide Hazards in the Cordelia-Vallejo Area, Napa and Solano Counties, California, Landslide Hazards Identification Map No. 13, by Manson, M.W., scale 1:24,000. DMG OFR 88-22.

• Landslide Hazards in the Vacaville Area, Solano County, California, Landslide Hazards Identification Map No. 14, by Majmundar, H.H., scale 1:24,000. DMG OFR 89-17.

Sonoma County

• Maps, GIS Data and Geologic Report for Watersheds Mapping Series, Map Set 5, Gualala River Watershed, Sonoma and Mendocino Counties, California.

• Geology for Planning On the Sonoma County Coast Between the Russian and Gualala Rivers, California, by Huffman, M.E., 1972. PR 016.

• Geology for Planning On the Sonoma County Coast Between the Russian River and Estero Americano, California, by Huffman, M.E., and others, 1973. PR 020.

• Geology for Planning in Sonoma County, California, by Huffman, M.E. and Armstrong C.F., 1980, SR 120.

• Erosion Along Dry Creek, Sonoma County, California, by Cleveland, G.B. and Kelley, F.R., 1977, SR 134.

• Geology and Slope Stability in Selected Parts of the Geysers Geothermal Area [Sonoma County], California, by Bedrossian, T.L., 1980, SR 142.

• Geology for Planning in the Sonoma Mountain and Mark West-Reibli Road Areas, Sonoma County, California, by Huffman, M.E. DMG OFR 72-25.

• Environmental Geologic Analysis of the Porter Creek Study Area, Sonoma County, California, by Armstrong, C.F. DMG OFR 77-13.

• Environmental Geologic Analysis of the Chalk Hill Road Study Area, Sonoma County, California, by Armstrong, C.F. DMG OFR 79-15.

• Geology and Slope Stability of the West Sebastopol Study Area, Sonoma County, California, by Bedrossian, T.L. DMG OFR 81-12.

• Landslide Hazards in the Southeastern Part of the Petaluma Dairy Belt, Sonoma County, California, Landslide Hazard Identification Map No. 1, by Smith, T.C., scale 1:24,000. DMG OFR 86-05.

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

• Landslides in the Highway 1 Corridor between Bodega Bay and Fort Ross, Sonoma County, California by M.W. Manson, C.M. Huyette, C.J. Wills, M.E. Huffman, M.G. Smelser, M.E. Fuller, C. Domrose and C. Gutierrez, 2006, California Geological Survey Special Report 196, 26 pgs.
  

Trinity County

• Index to Published Landslide Maps, California Coast Ranges, Monterey County and North for Use in Timber Harvest Plan Preparation on Non-Federal Land, by Davies, R.I. and Spittler, T.E.: DMG Special Publication 120. Available for download as a 635 KB Adobe Acrobat file. Errata sheet (67 KB) also available separately.

Tuolumne County

• Geology of the Calaveras Big Trees State Park, Calaveras and Tuolumne Counties, California, by Leivas, E.M. DMG OFR 84-05.

Ventura County

• Official Maps of Seismic Hazard Zones that show zones of required investigations for landslide hazards.

• Analysis of Mudslide Risk in Southern Ventura County, California; Regional Landslide Prediction; Mudslide, by Evans, J.R. and others. DMG OFR 72-23.

• Seismic Hazards Study of Ventura County, California, by Weber, F.H. and others. DMG OFR 76-05.

• February-March 1978 Rains in the Los Angeles Region; [Los Angeles, Orange, Riverside, San Bernardino, and Ventura Counties], Southern California, by Weber, F.H. and others. DMG OFR 79-04.

• Effects On Southern California of the Rains of February 13-21, 1980, Los Angeles, Orange, Riverside, and Ventura Counties, California, by Weber, F.H. DMG OFR 80-03.

• Map Showing Landslides of the Central and Western Santa Monica Mountains, Los Angeles and Ventura Counties, California, by Weber, F.H., Jr. and Wills, C.J., scale 1:48,000. DMG OFR 83-16.

• Geology of the Calabasas-Agoura-Eastern Thousand Oaks Area, Los Angeles and Ventura Counties, California, by Weber, F.H., Jr., scale 1:24,000. DMG OFR 84-01.

• Landslide Hazards in the North Half of the Calabasas Quadrangle, Los Angeles and Ventura Counties, California, Landslide Hazards Identification Map No. 20, by Irvine, P.J., scale 1:24,000. DMG OFR 89-18.

• Landslide Hazards in the Simi Valley Area, Los Angeles and Ventura Counties, California, Landslide Hazard Identification Map No. 22, by Irvine, P.J. DMG OFR 90-17.

• Investigation of Surface Geologic Effects and Related Land Movement in the City of Simi Valley [Ventura County] Resulting From the Northridge Earthquake of January 17, 1994, by Barrows, A.G. and others, 1994, scale 1:62,500. DMG OFR 94-09.

• Landslide Hazards in the Moorpark and Santa Paula Quadrangles, Ventura County, California, Landslide Hazards Identification Map No. 26, by Irvine, P.J., scale 1:24,000. DMG OFR 95-07.

• Reconnaissance Seismic Hazard Maps of Portions of Los Angeles and Ventura Counties, California, by Real, C.R. and others, scale 1:24,000. DMG OFR 96-01.

• Maps Showing Assessment of Landslide, Erosion, and Other Rainstorm-Related Hazards in the Area Burned by the April 28, 1996 Fire Near Fillmore, Ventura County, California, by Tan, S.S and others, scale 1:24,000. DMG OFR 98-32.

Yolo County

• Landslides and Geology Along Cache Creek Between Clear Lake and Capay Valley, Colusa, Lake, and Yolo Counties, California, Landslide Hazards Identification Map No. 19, by Manson, M.W., scale 1:24,000. DMG OFR 89-30.