Digital Images of Official Maps of Alquist-Priolo Earthquake Fault Zones of California, Northern and Eastern Region

Home , Mount San Antonio, San Gorgonio Mountain

By DMG Staff

California Department of Conservation Division of Mines and Geology

1 READ-ME FILE DIGITAL IMAGES OF OFFICIAL ALQUIST-PRIOLO EARTHQUAKE FAULT ZONES MAPS OF CALIFORNIA, NORTHERN AND EASTERN REGION

INTRODUCTION

The Alquist-Priolo Earthquake Fault Zoning (AP) Act was passed in 1972 as a result of the destructive 1971 San Fernando earthquake. The AP Act addresses the seismic hazard of surface fault rupture by prohibiting the placement of most structures for human occupancy across traces of active faults. The AP Act addresses the seismic hazard of surface fault rupture by prohibiting the placement of most structures for human occupancy across traces of active faults. The Act also requires sellers and real estate agents to inform buyers whether real property being sold is within a state- designated Earthquake Fault Zone. The Department of Conservation, Division of Mines and Geology has issued 544 regulatory maps as of March 1, 2000 at a scale of 1:24,000. These maps, designated as Earthquake Fault Zones maps, are issued in order to assist cities and counties in avoiding the hazard of surface fault rupture. For more information on the AP Act refer to the enclosed .pdf version of Special Publication (SP) 42, Fault-Rupture Hazard Zones in California. The statewide collection of digital images of AP Earthquake Fault Zone maps is divided into three geographic regions: Southern Region, Central Coastal Region, and Northern and Eastern Region. This CD contains digital images of Official Maps of Earthquake Fault Zones (EFZ) affecting the Northern and Eastern Region, including Alpine, Butte, Humboldt, Inyo, Lassen, Mendocino, Modoc, Mono, Shasta, and Siskiyou counties, and is current as of March 1, 2000. Updates of digital versions of Earthquake Fault Zone maps will be available on the Department of Conservation, Division of Mines and Geology’s (DMG) web site as new maps are issued and current maps are revised. New and/or revised EFZ maps generally are issued about once a year. Release announcements of both preliminary review maps and official EFZ maps can be found at www.consrv.ca.gov/dmg/rghm.

LICENSE AGREEMENT

©2000 California Department of Conservation, Division of Mines and Geology. All rights reserved. No part of this CD-ROM may be reproduced, transmitted, or distributed in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of the Division of Mines and Geology except as follows. Permission is granted to reproduce prints of all or part of the data under the following conditions:

1) For personal use 2) For publication in a report in unmodified form, cite on figure or in text as “Reproduced with permission. California Division of Mines and Geology CD-ROM 2000-00x

2 (2000), Official Map of Alquist-Priolo Earthquake Fault Zones, {name of} Quadrangle (19xx).” (3) For publication in a report in modified form, cite on figure or in text as “Modified from California Division of Mines and Geology from CD-ROM 2000-00x (2000), Official Map of Alquist-Priolo Earthquake Fault Zones, {name of} Quadrangle (19xx).” CD CONTENTS

Contents of this CD include 169 pdf image files of Official Maps of Alquist- Priolo Earthquake Fault Zones and metadata files for the Northern and Eastern Region. Special Publication (SP) 42, Fault-Rupture Hazard Zones in California (1999 reprinted version of 1997 edition), is included as a pdf file. This CD-ROM contains four tables in pdf file format. Table 1 is an alphabetical listing of EFZ map names listing the affected county(ies) and city (ies). Table 2 lists the 36 affected counties and the specific EFZ maps that affect that county. Table 3 lists the 100 affected cities and the specific EFZ maps affecting that city. Table 4 lists the counties contained in each of the CD-ROM sets. Please note that the tables of affected counties (Table 2) and affected cities (Table 3) are correct as of March 2000, but may be subject to change as new cities are created, city boundaries are expanded, or new zones are established. Current lists of counties and cities affected by AP EFZs are located at DOC\DMG’s website www.consrv.ca.gov/dmg/rghm.

The EFZ files contained in this CD are current as of March 1, 2000. Please check the DMG website at www.consrv.ca.gov/dmg/rghm for current information on new and revised EFZ maps.

Original AP EFZ maps (original hardcopy maps) consist of a topographic base map at 1:24,000 scale and a clear-film overlay containing turning points defining EFZ boundaries and fault traces used to establish the EFZ. Fault traces consist of five line types:

Solid line: accurately located trace Long-dashed line: approximately located trace Short-dashed line: inferred fault trace Dotted line: concealed fault trace Thin dashed and dotted line: indicates aerial photo lineament (symbol generally not used after 1981) Query: indicates additional uncertainty

The Act was initially designated Alquist-Priolo Special Studies Zones Act and official regulatory maps were known as maps of Special Studies Zones. The name was changed January 1, 1994 to Alquist-Priolo Earthquake Fault Zoning Act and the official maps are currently referred to as maps of Earthquake Fault Zones. Title blocks of maps issued prior to 1994 refer to the older name Special Studies Zones. These pre-1994 maps have been reproduced for this CD without the stamp referring to the name change.

3 DIGITAL COMPILATION

The original hardcopy maps used to reproduce Official Maps of Earthquake Fault Zones were the basis for developing these digital image files. Each hardcopy map consists of two layers: a solid line clear film topographic base and a clear film overlay containing EFZ zones and fault traces. Each layer was scanned at 400 dpi using an Anatech large-format scanner. The base and overlay images were translated to .pcx grayscale images and resolution reduced to 266 dpi and reduced to 50% of the physical image size. These reductions in size and resolution allowed smaller file sizes with negligible loss of image quality. The resulting .pcx files were then registered, enhanced, and processed to .pdf files using Adobeâ Photoshopâ and Adobeâ Acrobatâ The final Acrobat images are optimized to read in Adobeâ Acrobatâ Reader, version 4.0.

GETTING STARTED

You must have Adobe Acrobat Reader 4.0 installed before you can view the EFZ images. The .pdf files on this CD-ROM are exact images of the Official Maps of Earthquake Fault Zones issued by the Division of Mines and Geology. These images are intended for viewing and printing at a scale of 1 inch equals 2,000 feet. Any further enlargement could result in a lesser quality image.

SETTING UP YOUR ACCROBAT READER

Inserting the CD-ROM (only when using a windows pc) will automatically open a window with navigation buttons to start your session. When first opening the Acrobat Reader, select “file”, “preferences”, “general” and unselect the option to open cross-doc links in the same window. Deselecting this option allows multiple window operation. You may also need to configure your Internet Browser using weblink preferences in Acrobat Reader.

NAVIGATING THE CD FILES

The individual county index maps show all of the EFZ maps that affect that county. At the main index map, selecting either a specific county on the index map, or the county name in the list to the left will access the specific county index map. If your view is showing the thumbnails or bookmarks as a list, you may also double-click these to navigate to the desired county.

Each county map has arrow indicators to access the adjacent county. However, if the arrow points to a county or map not contained in this CD-ROM, nothing will happen. An Acrobat sticky-note will indicate what action to take. You will have to purchase the CD-ROM that contains that county from the Division of Mines and Geology. Refer to Table 4 for a list of counties contained in each CD-ROM set.

To find a specific EFZ map, you need to know the geographic location of the area, the city name, or the quadrangle map name. Affected cities are listed in Table 3 and are shown to the left of each county index. Clicking on the city name in this list on the 4 county index maps will access the correct EFZ map. If an incorporated city is not listed in Table 3, it is not affected by an EFZ. If an EFZ on a specific quadrangle map extends to the adjacent quadrangle contained in this CD-ROM, clicking on the area outside of the map border will directly access the adjacent EFZ map.

SELECTING AND PRINTING A SPECIFIC AREA ON AN EFZ MAP

Any portion of these maps can be selected and copied for use in any application using the paste command. To select an area, open the document and zoom to 100% at the area of interest. Hold the mouse button down on the “grab text” tool button, which will expand to three buttons. Choose the “grab graphics” tool button (last one on the right). Using this tool, select your area of interest. Now use the zoom box to enter “200%” as zoom number, then copy the selection. Using 200% will result in a image at approximately the original map scale (1:24,000) that can be copied into the desired application.

To print the selected area at a scale of 1 inch equals 2,000 feet requires printing at 200% enlargement. The image was reduced 50% to reduce file size attributes, while maintaining image quality for viewing. Printing at 100% of image size will result in a printed scale of approximately 1 inch equals 4,000 feet.

ACCURACY AND LIMITATIONS OF THIS DATABASE

Original hardcopy AP EFZ maps were compiled over the past 25 years at a scale of 1:24,000. Digital EFZ files were created by scanning the hardcopy maps used to generate Official EFZ maps. As the scale of the digital image is increased from 1:24,000, uncertainty and errors in fault location and EFZ boundary and turning point locations remain the same. U.S. Geological Survey base map standards provide that 90 percent of cultural features be located within 40 feet (horizontal accuracy) at the scale of 1:24,000. Turning point locations were placed on the original hardcopy maps using the criteria of establishing the desired setback distance from the fault zone and using a readily identifiable feature on the ground. However, the turning points and connecting EFZ boundaries have not been surveyed to verify their mapped positions. The typical width of the turning point dot is between 40-50 feet at 1:24,000 scale. In addition, the width of the EFZ boundary at 1:24,000 is about 25 feet. Therefore, the actual location of EFZ boundaries should be considered to be no better located than ± 50 feet.

5 DISCLAIMERS

GENERAL DISCLAIMER This software and data are provided by the California Department of Conservation, Division of Mines and Geology "as is" and any express warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the California Department of Conservation, Division of Mines and Geology or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but limited to, procurement or substitute goods or services; loss of use, data or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software and data, even if advised of the possibility of such damage.

METADATA DISCLAIMER

Although the data on this CD have been produced and processed by professional scientists and organizations, the California Department of Conservation, Division of Mines and Geology makes no warranty, expressed or implied, regarding its data or utility. It is recommended that careful attention be paid to the contents of any metadata associated with a file, and that the originator of the data be contacted with any questions regarding appropriate use. The California Department of Conservation, Division of Mines and Geology shall not be held liable for improper or incorrect use of the data described and/or contained herein.

1) For personal use 2) For publication in a report in unmodified form, cite on figure or in text as “Reproduced with permission. California Division of Mines and Geology CD-ROM 2000-00x (2000), Official Map of Alquist-Priolo Earthquake Fault Zones, {name of} Quadrangle (19xx).” (3) For publication in a report in modified form, cite on figure or in text as “Modified from California Division of Mines and Geology from CD-ROM 2000-00x (2000), Official Map of Alquist-Priolo Earthquake Fault Zones, {name of} Quadrangle (19xx).”

6 METADATA

Citation

Citation Information

Originator: California Department of Conservation, Division of Mines and Geology Publication Date: 20000601 Series: Information Geospatial_Data_Presentation_Form: Map Image Release Date: Varied (noted on map image) Publication Place: Sacramento, CA Publisher: California Department of Conservation, Division of Mines and Geology Online linkage: http://www.consrv.ca.gov/dmg/index.htm

Description – Data Quality Information

Abstract:

This data set is comprised of lines that form fault traces and regulatory zone boundaries of areas where surface fault rupture previously has occurred, or where local topographic and geological conditions indicate a potential for permanent ground displacements such that mitigation by avoidance as stated in Public Resources Code Section 2621.5 would be required.

Purpose:

These maps will assist cities and counties in fulfilling their responsibility to prohibit the location of developments and structures for human occupancy across the trace of active faults as required by the Alquist- Priolo Earthquake Fault Zoning Act (Public Resources Code Sections 2621-2630). These maps will also assist those acting as an agent for a seller of real property located in a delineated earthquake fault zone, or the seller if they are acting without an agent, to disclose to any prospective purchaser that fact that a property is located within a delineated fault zone.

For information regarding the scope and recommended methods to be used in conducting required site investigations, see DMG Special Publication 42, Fault-Rupture Hazard Zones in California.

TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps

ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Agua Caliente Springs 1/1/80 San Diego SC Alamorio 1/1/90 Imperial SC Alberhill 1/1/80 Riverside Lake Elsinore SC Alcalde Hills 1/1/85 Fresno CC Altamont 1/1/82 Alameda Livermore CC Annapolis 7/1/74 Sonoma CC Ano Nuevo 1/1/82 San Mateo; Santa Cruz CC Apache Canyon 7/1/74 Kern CC Apple Valley North 3/1/88 San Bernardino SC Apple Valley South 3/1/88 San Bernardino SC Arcata North 7/1/83 Humboldt Arcata NE Arcata South 7/1/83 Humboldt Arcata NE Arched Rock 7/1/74 Sonoma CC Arroyo Tapiado 1/1/80 San Diego SC Arvin 1/1/76 Kern CC Asti 7/1/83 Sonoma CC Avawatz Pass SW1/4 1/1/76 San Bernardino SC Badwater 1/1/90 Inyo NE Ballarat 1/1/90 Inyo NE Ballinger Canyon 7/1/74 Kern; San Luis Obispo CC Bangor 1/1/77 Butte NE Barstow 3/1/88 San Bernardino SC Barstow SE 3/1/88 San Bernardino Barstow SC Bartlett 1/1/90 Inyo NE Bear Mountain 1/1/76 Kern CC Beatty Junction 1/1/90 Inyo NE Beaumont 6/1/95 Riverside Banning SC Bee Springs Canyon 1/1/90 Inyo NE Beverly Hills 7/1/86 Los Angeles Culver City; Los SC Angeles Bickmore Canyon 7/1/74 San Benito CC Big Bear City 3/1/88 San Bernardino SC Big Pine NE1/4 1/1/85 Inyo NE Bighorn Canyon 3/1/88 San Bernardino SC Bird Spring 3/1/88 San Bernardino SC Bishop NE1/4 1/1/85 Inyo; Mono NE Bishop NW1/4 1/1/85 Inyo; Mono Bishop NE Bishop SE1/4 1/1/85 Inyo NE Bishop SW1/4 1/1/85 Inyo Bishop NE Blackrock 1/1/90 Inyo NE Bodega Head 7/1/74 Marin; Sonoma CC Bodie NW1/4 1/1/85 Mono NE Bodie SW1/4 1/1/85 Mono NE Bolinas 7/1/74 Marin CC Bonds Corner 1/1/90 Imperial SC Borrego Mountain 7/1/74 San Diego SC Borrego Mountain SE 7/1/74 Imperial; San Diego SC

* The entire state consists of 3 image CD-ROM sets: 9 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Borrego Palm Canyon 7/1/74 San Diego SC Borrego Sink 7/1/74 San Diego SC Brawley 1/1/90 Imperial SC Brawley NW 1/1/90 Imperial SC Bray 11/1/91 Siskiyou NE Breckenridge Mountain 1/1/76 Kern CC SE1/4 Breckenridge Mountain 1/1/76 Kern CC SW1/4 Bridgeport SW1/4 1/1/85 Mono NE Bucksnort Mtn. 7/1/74 Riverside SC Burbank 1/1/79 Los Angeles Glendale; Los Angeles SC Burney 11/1/91 Shasta NE Burney Falls 11/1/91 Shasta NE Burnt Peak 7/1/74 Los Angeles SC Burro Mountain 7/1/86 San Luis Obispo CC Byron Hot Springs 1/1/82 Alameda; Contra Costa CC Cabazon 6/1/95 Riverside Banning SC Cactus Peak 1/1/90 Inyo NE Cady Mountains NW1/4 1/1/76 San Bernardino SC Cajon 7/1/74 San Bernardino SC Calaveras Reservoir 1/1/82 Alameda; Santa Clara Milpitas; San Jose CC Calexico 1/1/90 Imperial SC Calneva Lake 11/1/91 Lassen NE Camarillo 5/1/98 Ventura Camarillo SC Camp Rock Mine 3/1/88 San Bernardino SC Cantil 1/1/90 Kern CC Carrizo Mtn. 1/1/80 Imperial; San Diego SC Casa Diablo Mtn. SW1/4 1/1/85 Mono NE Cassel 11/1/91 Shasta NE Castle Rock Ridge 7/1/74 Santa Clara CC Cathedral City 7/1/74 Riverside SC Cedar Mtn. 1/1/82 Alameda CC Cedarville 11/1/91 Modoc NE Cherry Peak 7/1/86 San Benito CC Chittenden 1/1/82 San Benito; Santa Clara; CC Santa Cruz Chocolate Mtn. 1/1/90 Inyo; Mono NE Cholame 7/1/86 San Luis Obispo CC Cholame Hills 7/1/86 Monterey CC Cholame Valley 7/1/86 Monterey; San Luis Obispo CC Cinco 1/1/90 Kern CC Clark Lake 7/1/74 San Diego SC Clark Lake NE 7/1/74 Riverside; San Diego SC Clayton 7/1/93 Contra Costa Walnut Creek CC Clearlake Highlands 7/1/83 Lake CC Coal Oil Canyon 1/1/85 Kern CC Coble Mountain 11/1/91 Shasta NE

* The entire state consists of 3 image CD-ROM sets: 10 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Collins Valley 7/1/74 Riverside; San Diego SC Confidence Hills East 1/1/90 Inyo; San Bernardino NE; SC Confidence Hills West 1/1/90 Inyo NE Conner SW 1/1/85 Kern CC Constantia 11/1/91 Lassen NE Copper Queen Canyon 1/1/90 Inyo; San Bernardino NE; SC Cordelia 7/1/93 Napa; Solano American Canyon; CC Fairfield Corona South 1/1/80 Riverside Corona SC Cotati 7/1/83 Sonoma CC Cougar Buttes 3/1/88 San Bernardino SC Crevison Peak 7/1/86 Merced; Stanislaus CC Cucamonga Peak 6/1/95 San Bernardino Rancho Cucamonga SC Cuddeback Lake NW1/4 1/1/76 San Bernardino SC Cuddy Valley 7/1/74 Kern; Ventura CC, SC Cupertino 7/1/74 Santa Clara CC Cuttings Wharf 7/1/83 Napa American Canyon CC Cuyama 7/1/74 San Luis Obispo CC Daggett 3/1/88 San Bernardino SC Dana 11/1/91 Shasta NE Dantes View 1/1/90 Inyo NE Day 11/1/91 Shasta NE Deadman Lake NW 3/1/88 San Bernardino SC Deadman Lake SE 3/1/88 San Bernardino SC Deadman Lake SW 3/1/88 San Bernardino SC Deep Springs Lake 1/1/90 Inyo NE Del Sur 1/1/79 Los Angeles SC Desert Creek Peak SW1/4 1/1/85 Mono NE Desert Hot Springs 1/1/80 Riverside Desert Hot Springs; SC Palm Springs Devils Golf Course 1/1/90 Inyo NE Devils Postpile NE1/4 1/1/85 Mono Mammoth Lakes NE Devore 6/1/95 San Bernardino Fontana; Rancho SC Cucamonga; Rialto; San Bernardino Diablo 1/1/82 Contra Costa Danville; San Ramon CC Dorris 11/1/91 Siskiyou NE Double Point 7/1/74 Marin CC Doyle 11/1/91 Lassen NE Drakes Bay 7/1/74 Marin CC Dry Bone Canyon 1/1/90 Inyo NE Dublin 1/1/82 Alameda; Contra Costa Dublin; Pleasanton; CC San Ramon Duncans Mills 7/1/74 Sonoma CC Durmid 7/1/74 Imperial; Riverside SC Dyer 1/1/90 Mono NE Eagle Peak 11/1/91 Modoc NE Eagle Rest Peak 1/1/85 Kern CC

* The entire state consists of 3 image CD-ROM sets: 11 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Eagleville 11/1/91 Modoc NE Earthquake Valley 1/1/80 San Diego SC East of Owl Lake 1/1/90 San Bernardino SC East of Pondosa 11/1/91 Siskiyou NE East of Tin Mountain 1/1/90 Inyo NE Edison 1/1/85 Kern CC El Casco 6/1/95 Riverside Calimesa; Moreno SC Valley El Centro 1/1/90 Imperial SC El Monte 11/1/91 Los Angeles Rosemead; San Marino SC El Paso Peaks 1/1/76 Kern; San Bernardino CC; SC Elk Mountain 6/1/95 Lake CC Elkhorn Hills 7/1/74 San Luis Obispo CC Elledge Peak 1/1/82 Mendocino NE Elsinore 1/1/80 Riverside Lake Elsinore SC Emerson Lake 6/1/95 San Bernardino SC Emigrant Pass 1/1/90 Inyo NE Eylar Mtn. 1/1/82 Alameda; Santa Clara CC Fairfield South 7/1/93 Solano CC Fairview Valley 3/1/88 San Bernardino SC Fales Hot Springs 1/1/85 Mono NE Fales Hot Springs SE1/4 1/1/85 Mono NE Fall Canyon 1/1/90 Inyo NE Fall River Mills 11/1/91 Shasta NE Fawnskin 3/1/88 San Bernardino SC Fields Landing 11/1/91 Humboldt NE Fifteenmile Valley 3/1/88 San Bernardino SC Fillmore 11/1/91 Ventura SC Fish Springs 1/1/90 Inyo NE Fonts Point 7/1/74 San Diego SC Fort Bidwell 11/1/91 Modoc NE Fort Ross 7/1/74 Sonoma CC Fortuna 11/1/91 Humboldt Fortuna NE Franklin Point 1/1/82 San Mateo CC Frazier Mtn. 7/1/74 Kern; Los Angeles; Ventura CC; SC Fremont Peak 3/1/88 San Bernardino SC Frink 3/1/88 Imperial SC Frink NW 3/1/88 Imperial; Riverside SC Fry Mountains 3/1/88 San Bernardino SC Furnace Creek 1/1/90 Inyo NE Galway Lake 6/1/95 San Bernardino SC Garlock 1/1/76 Kern CC Garner Mtn. 11/1/91 Siskiyou NE Geyserville 7/1/83 Sonoma CC Gilroy 1/1/82 Santa Clara CC Gilroy Hot Springs 1/1/82 Santa Clara CC Glen Ellen 7/1/83 Sonoma CC Goat Mountain 3/1/88 San Bernardino SC

* The entire state consists of 3 image CD-ROM sets: 12 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Gold Valley 1/1/90 Inyo NE Grand View Mine 3/1/88 San Bernardino SC Grapevine 1/1/85 Kern CC Grotto Canyon 1/1/90 Inyo NE Gualala 7/1/74 Mendocino NE Half Moon Bay 1/1/76 San Mateo CC Hanaupah Canyon 1/1/90 Inyo NE Harpers Well 7/1/74 Imperial SC Harrison Mtn. 7/1/74 San Bernardino Highland; San SC Bernardino Harvard Hill 6/1/95 San Bernardino SC Hayward 1/1/82 Alameda Hayward; San Leandro CC Healdsburg 7/1/83 Sonoma Windsor CC Hector 3/1/88 San Bernardino SC Hemet 1/1/80 Riverside Hemet SC Hemet NE1/4 7/1/74 Riverside SC Hepsedam Peak 7/1/74 Monterey; San Benito CC Herlong 11/1/91 Lassen NE Hidalgo Mtn. 3/1/88 San Bernardino SC Hidden Spring 1/1/90 San Bernardino SC Hogback Ridge 11/1/91 Shasta NE Holland Canyon 7/1/74 Kern; San Luis Obispo CC Hollister 1/1/82 San Benito Hollister CC Hollywood 7/1/86 Los Angeles Culver City; Los SC Angeles Holtville West 1/1/90 Imperial SC Hopland 7/1/83 Mendocino NE Horse Thief Canyon 1/1/90 Inyo NE Hull Mountain 6/1/95 Lake CC Hydesville 11/1/91 Humboldt Fortuna NE Idyllwild NW1/4 7/1/74 Riverside SC Idyllwild SE1/4 7/1/74 Riverside SC Idyllwild SW1/4 7/1/74 Riverside SC Independence 1/1/90 Inyo NE Indian Garden Creek 1/1/90 Mono NE Indian Spring Mountain 11/1/91 Siskiyou NE Indio 7/1/74 Riverside Coachella; Indio SC Inglewood 7/1/86 Los Angeles Carson; Compton; SC Gardena; Inglewood; Los Angeles Inverness 7/1/74 Marin CC Inyokern 1/1/90 Kern CC Iron Ridge 3/1/88 San Bernardino SC Jail Canyon 1/1/90 Inyo NE Jellico 11/1/91 Shasta NE Jericho Valley 7/1/83 Lake; Napa; Yolo CC Jimtown 7/1/83 Sonoma CC Joshua Tree North 3/1/88 San Bernardino SC

* The entire state consists of 3 image CD-ROM sets: 13 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Joshua Tree South 7/1/93 Riverside; San Bernardino Yucca Valley SC Julian 1/1/80 San Diego SC Juniper Hills 7/1/74 Los Angeles SC Kane Spring 1/1/90 Imperial SC Kearsarge Peak 1/1/90 Inyo NE Keller Peak 7/1/74 San Bernardino SC Kelseyville 7/1/83 Lake CC Klinker Mtn. 1/1/76 San Bernardino SC Knoxville 7/1/83 Napa CC Korbel 7/1/83 Humboldt NE Kramer Hills 3/1/88 San Bernardino SC La Costa Valley 1/1/82 Alameda CC La Habra 11/1/91 Los Angeles; Orange La Habra; La Habra SC Heights; Whittier La Jolla 11/1/91 San Diego San Diego SC La Liebre Ranch 7/1/74 Los Angeles SC La Panza NE 7/1/74 Kern; San Luis Obispo CC Lake City 11/1/91 Modoc NE Lake Hughes 7/1/74 Los Angeles SC Lake Mathews 1/1/80 Riverside SC Lake Pillsbury 6/1/95 Lake CC Lakeview 3/1/88 Riverside San Jacinto SC Landers 7/1/93 San Bernardino SC Las Yeguas Ranch 7/1/74 Kern; San Luis Obispo CC Last Chance Mtn. 1/1/90 Inyo NE Laurel 11/1/91 Santa Clara; Santa Cruz CC Lavic Lake 3/1/88 San Bernardino SC Lavic SE 3/1/88 San Bernardino SC Laytonville 7/1/83 Mendocino NE Leach Lake SE1/4 1/1/76 San Bernardino SC Leach Lake SW1/4 1/1/76 San Bernardino SC Lebec 7/1/74 Kern; Los Angeles CC; SC Lick Observatory 1/1/82 Santa Clara San Jose CC Liebre Mtn. 7/1/74 Los Angeles SC Liebre Twins 1/1/76 Kern CC Little Lake 1/1/90 Inyo NE Littlerock 7/1/74 Los Angeles SC Livermore 1/1/82 Alameda Pleasanton CC Lockhart 3/1/88 San Bernardino SC Loma Prieta 1/1/76 Santa Cruz CC Lone Pine 1/1/90 Inyo NE Long Beach 7/1/86 Los Angeles Long Beach; Signal Hill SC Longvale 7/1/83 Mendocino NE Lonoak 7/1/74 Monterey; San Benito CC Los Alamitos 7/1/86 Los Angeles; Orange Long Beach; Seal SC Beach Los Angeles 1/1/77 Los Angeles Los Angeles; SC Pasadena; San Marino;

* The entire state consists of 3 image CD-ROM sets: 14 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE South Pasadena Los Banos Valley 7/1/86 Merced CC Los Gatos 11/1/91 Santa Clara; Santa Cruz CC Lost Horse Mtn. SW1/4 7/1/74 Riverside Indio SC Lucerne Valley 3/1/88 San Bernardino SC Macdoel 11/1/91 Siskiyou NE Malibu Beach 6/1/95 Los Angeles Malibu SC Mallo Pass Creek 7/1/74 Mendocino NE Manly Fall 1/1/90 Inyo NE Manzanar 1/1/90 Inyo NE Mare Island 1/1/82 Contra Costa Richmond CC Maricopa 7/1/74 San Luis Obispo CC Mark West Springs 7/1/93 Sonoma CC Markleeville 1/1/85 Alpine NE Matilija 7/1/86 Ventura SC Matterhorn Peak NE1/4 1/1/85 Mono NE Maturango Peak NE 1/1/90 Inyo NE Maturango Peak SE 1/1/90 Inyo NE McKesick Peak 11/1/91 Lassen NE McKittrick Summit 7/1/74 San Luis Obispo CC Mecca 7/1/74 Riverside SC Melville Lake 6/1/95 San Bernardino SC Mesa Grande 1/1/80 San Diego SC Mescal Creek 7/1/74 Los Angeles SC Mesquite Flat 1/1/90 Inyo NE Mettler 1/1/85 Kern CC Midway 1/1/82 Alameda CC Milford 11/1/91 Lassen NE Milpitas 1/1/82 Alameda; Santa Clara Fremont; Milpitas CC Mindego Hill 7/1/74 San Mateo; Santa Clara Palo Alto; Portola CC Valley Minden 1/1/85 Alpine NE Minneola 3/1/88 San Bernardino SC Mojave 1/1/76 Kern CC Mojave NE1/4 1/1/76 Kern CC Mojave NW1/4 1/1/76 Kern CC Monarch Peak 7/1/74 Monterey; San Benito CC Mono Craters NE1/4 1/1/85 Mono NE Mono Craters NW1/4 1/1/85 Mono NE Mono Craters SE1/4 1/1/85 Mono NE Monolith 1/1/76 Kern CC Montara Mountain 1/1/82 San Mateo San Bruno CC Montgomery Peak NW 1/1/85 Mono NE Montgomery Peak SW 1/1/85 Mono NE Monument Peak 1/1/80 San Diego SC Moorpark 5/1/99 Ventura Moorpark SC Morgan Hill 1/1/82 Santa Clara San Jose CC Mormon Point 1/1/90 Inyo NE

* The entire state consists of 3 image CD-ROM sets: 15 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Morongo Valley SE1/4 7/1/74 Riverside; San Bernardino SC Morongo Valley SW1/4 7/1/74 Riverside; San Bernardino SC Mortmar 7/1/74 Riverside SC Mount San Antonio 7/1/74 Los Angeles; San SC Bernardino Mount St. Helena 7/1/83 Sonoma CC Mount Tom 1/1/85 Inyo NE Mt. Baldy 6/1/95 San Bernardino Rancho Cucamonga; SC Upland Mt. Day 1/1/82 Santa Clara CC Mt. George 7/1/93 Napa; Solano CC Mt. Harlan 7/1/74 San Benito CC Mt. Langley 1/1/90 Inyo NE Mt. Madonna 1/1/76 Santa Cruz CC Mt. Morgan 1/1/85 Inyo; Mono NE Mt. Morrison NE1/4 1/1/82 Mono NE Mt. Morrison NW1/4 1/1/82 Mono Mammoth Lakes NE Mt. Morrison SE1/4 1/1/82 Mono NE Mt. Sizer 1/1/82 Santa Clara Morgan Hill; San Jose CC Mt. Williamson 1/1/90 Inyo NE Mt. Wilson 1/1/77 Los Angeles Arcadia; Monrovia; San SC Marino Mud Hills 3/1/88 San Bernardino SC Murken Bench 11/1/91 Shasta NE Murrieta 1/1/90 Riverside Murrieta; Temecula SC Mustang Peak 7/1/86 Stanislaus CC Myoma 7/1/74 Riverside SC Newark 1/1/82 Alameda Fremont; Hayward; CC Union City Newberry NE1/4 1/1/76 San Bernardino SC Newberry Springs 6/1/95 San Bernardino SC Newbury Park 5/1/99 Ventura Camarillo SC Newhall 6/1/95 Los Angeles Santa Clarita SC Newport Beach 7/1/86 Orange Huntington Beach SC Niles 1/1/80 Alameda Fremont; Pleasanton; CC Union City North of Oildale 1/1/85 Kern CC Nova Canyon 1/1/90 Inyo NE Oakland East 1/1/82 Alameda Berkeley; Oakland CC Oakland West 1/1/82 Alameda Berkeley CC Oat Mountain 1/1/76 Los Angeles Los Angeles; Santa SC Clarita Oil Center 1/1/85 Kern Bakersfield CC Oildale 1/1/85 Kern CC Ojai 7/1/86 Ventura SC Olancha 1/1/90 Inyo NE Old Ibex Pass 1/1/90 San Bernardino SC Old Station 11/1/91 Shasta NE

* The entire state consists of 3 image CD-ROM sets: 16 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Old Woman Springs 3/1/88 San Bernardino SC Opal Mountain 3/1/88 San Bernardino SC Orchard Peak 7/1/74 Kern; San Luis Obispo CC Ord Mountain 3/1/88 San Bernardino SC Ornbaun Valley SW1/4 7/1/74 Mendocino; Sonoma NE; CC Orocopia Canyon 7/1/74 Riverside SC Ortigalita Peak 7/1/86 Fresno; Merced CC Ortigalita Peak NW 7/1/86 Merced CC Pacheco Pass 7/1/86 Merced CC Packwood Creek 7/1/74 Kern; San Luis Obispo CC Paicines 7/1/86 San Benito CC Painted Rock 7/1/74 San Luis Obispo CC Pala 1/1/80 San Diego SC Palm Desert SW1/4 7/1/74 Riverside SC Palmdale 1/1/79 Los Angeles Palmdale SC Palo Alto 7/1/74 San Mateo Portola Valley; CC Woodside Panamint Butte 1/1/90 Inyo NE Panamint Springs 1/1/90 Inyo NE Panorama Hills 7/1/74 San Luis Obispo CC Parkfield 7/1/86 Monterey CC Pastoria Creek 1/1/76 Kern CC Pearsonville 1/1/90 Inyo; Kern NE; CC Pechanga 1/1/90 Riverside; San Diego Temecula SC Petaluma River 7/1/83 Sonoma CC Piedras Blancas 7/1/86 San Luis Obispo CC Pitas Point 11/1/91 Ventura SC Pittville 11/1/91 Lassen; Shasta NE Plantation 7/1/74 Sonoma CC Plaster City NW 7/1/74 Imperial SC Pleito Hills 1/1/85 Kern CC Point Arena 7/1/74 Mendocino NE Point Arena NE1/4 7/1/74 Mendocino NE Point Dume 6/1/95 Los Angeles Malibu SC Point Loma 11/1/91 San Diego San Diego SC Point Reyes NE 7/1/74 Marin CC Pond 1/1/85 Kern CC Porcupine Butte 11/1/91 Siskiyou NE Potato Hill 6/1/95 Lake CC Prado Dam 1/1/80 Orange Yorba Linda SC Priest Valley 7/1/74 Monterey CC Purdys Gardens 7/1/83 Mendocino NE Quail Mountains SE1/4 1/1/76 San Bernardino SC Quail Mountains SW1/4 1/1/76 San Bernardino SC Queen Mtn. 3/1/88 San Bernardino Twentynine Palms SC Rainbow Mountain 11/1/91 Siskiyou NE Ranchita 1/1/80 San Diego SC Rattlesnake Canyon 3/1/88 San Bernardino SC

* The entire state consists of 3 image CD-ROM sets: 17 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Red Rock Lakes 11/1/91 Siskiyou NE Redlands 1/1/77 Riverside; San Bernardino Highland; Loma Linda; SC Redlands Redwood Valley 7/1/83 Mendocino NE Revenue Canyon 1/1/90 Inyo NE Richmond 1/1/82 Alameda; Contra Costa Berkeley; El Cerrito; CC Richmond; San Pablo Ridgecrest North 1/1/90 Kern Ridgecrest CC Ridgecrest South 1/1/90 Kern Ridgecrest CC Rio Bravo Ranch 1/1/85 Kern Bakersfield CC Ritter Ridge 1/1/79 Los Angeles Palmdale SC Rock Spring Peak 7/1/74 San Benito CC Rovana 1/1/85 Inyo; Mono NE Saltdale SE 1/1/76 Kern CC Salton 7/1/74 Riverside SC Sams Neck 11/1/91 Siskiyou NE San Benito 7/1/74 San Benito CC San Bernardino North 7/1/74 San Bernardino Rialto; San Bernardino SC San Bernardino South 1/1/77 San Bernardino Colton; Loma Linda; SC Rialto; San Bernardino San Felipe 1/1/82 San Benito; Santa Clara CC San Fernando 1/1/79 Los Angeles Los Angeles; San SC Fernando San Francisco South 1/1/82 San Mateo Daly City; Pacifica; San CC Bruno; South San Francisco San Gorgonio Mountain 7/1/74 Riverside; San Bernardino SC SE1/4 San Gorgonio Mountain 7/1/74 Riverside; San Bernardino Banning; Yucaipa SC SW1/4 San Jacinto 1/1/80 Riverside Hemet; San Jacinto SC San Jose East 1/1/82 Santa Clara San Jose CC San Juan Bautista 7/1/74 San Benito San Juan Bautista CC San Leandro 1/1/82 Alameda Oakland; San Leandro CC San Luis Dam 7/1/86 Merced CC San Luis Obispo 1/1/90 San Luis Obispo San Luis Obispo CC San Mateo 7/1/74 San Mateo CC San Simeon 7/1/86 San Luis Obispo CC Sanhedrin Mtn. 6/1/95 Lake; Mendocino CC; NE Santa Paula 5/1/98 Ventura Camarillo SC Santa Paula Peak 7/1/86 Ventura SC Santa Rosa 7/1/83 Sonoma Santa Rosa CC Santiago Creek 7/1/74 Kern CC Saticoy 7/26/78 Ventura Ventura (San SC Buenaventura) Sawmill Mountain 7/1/74 Kern CC Scottys Castle 1/1/90 Inyo NE Seal Beach 7/1/86 Orange Huntington Beach; Seal SC Beach * The entire state consists of 3 image CD-ROM sets: 18 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Searles Lake SE1/4 1/1/76 San Bernardino SC Sears Point 7/1/83 Sonoma CC Seeley 1/1/90 Imperial SC Seven Palms Valley 1/1/80 Riverside Cathedral City; Desert SC Hot Springs Sharp Mtn. 11/1/91 Siskiyou NE Sheep Mountain 11/1/91 Siskiyou NE Shell Reef 7/1/74 Imperial; San Diego SC Shelter Cove 5/1/98 Humboldt NE Shore Line Butte 1/1/90 Inyo NE Silver Bell Mine 3/1/88 San Bernardino SC Simi Valley East 5/1/99 Ventura Simi Valley SC Simi Valley West 5/1/99 Ventura Moorpark; Simi Valley SC Simmler 7/1/74 San Luis Obispo CC Slack Canyon 7/1/74 Monterey CC Sleepy Valley 1/1/79 Los Angeles Palmdale SC Smith Mountain 7/1/74 Monterey CC Snake Lake 11/1/91 Lassen; Modoc NE Soldier Pass 1/1/90 Inyo NE Sourdough Spring 1/1/90 San Bernardino SC Spangler Hills East 1/1/90 San Bernardino SC Standish 11/1/91 Lassen NE Station Peak 1/1/90 Mono NE Stewarts Point 7/1/74 Sonoma CC Stockdale Mountain 7/1/86 Monterey CC Stony Ridge 11/1/91 Lassen NE Stovepipe Wells NE 1/1/90 Inyo NE Sunfair 3/1/88 San Bernardino Twentynine Palms SC Sunland 1/1/79 Los Angeles Glendale; Los Angeles SC Sunnymead 7/1/74 Riverside Moreno Valley SC Sunshine Peak 3/1/88 San Bernardino SC Superior Lake 3/1/88 San Bernardino SC Superstition Mtn. 1/1/90 Imperial SC Swains Hole 11/1/91 Lassen; Shasta NE Sweeney Pass 1/1/80 San Diego SC Sylvania Canyon 1/1/90 Inyo NE Taft 1/1/76 Kern CC Tassajara 1/1/82 Contra Costa CC Tehachapi South 1/1/76 Kern CC Telegraph Peak 7/1/74 San Bernardino SC Temecula 1/1/90 Riverside Temecula SC Tennant 11/1/91 Siskiyou NE The Buttes 3/1/88 San Bernardino SC The Dunes 1/1/90 Inyo NE Thermal Canyon 7/1/74 Riverside Coachella SC Thousand Palms NE1/4 7/1/74 Riverside SC Three Sisters 7/1/86 San Benito CC Timbered Crater 11/1/91 Modoc; Shasta; Siskiyou NE

* The entire state consists of 3 image CD-ROM sets: 19 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Tinemaha Reservoir 1/1/90 Inyo NE Tomales 7/1/74 Marin CC Topaz Lake NE1/4 1/1/85 Mono NE Topaz Lake SE1/4 1/1/85 Mono NE Topo Valley 7/1/74 San Benito CC Torrance 7/1/86 Los Angeles Carson SC Tres Pinos 7/1/86 San Benito CC Trinidad 7/1/83 Humboldt Trinidad NE Troy Lake 6/1/95 San Bernardino SC Tule Canyon 1/1/90 Inyo NE Tungsten Hills 1/1/85 Inyo NE Turtle Valley 3/1/88 San Bernardino SC Twentynine Palms 3/1/88 San Bernardino Twentynine Palms SC Twentynine Palms Mountain 3/1/88 San Bernardino Twentynine Palms SC Tylerhorse Canyon 1/1/76 Kern CC Ubehebe Crater 1/1/90 Inyo NE Uhlmeyer Spring 1/1/90 Inyo NE Ukiah 1/1/82 Mendocino NE Union Wash 1/1/90 Inyo NE Valley Ford 7/1/74 Marin; Sonoma CC Valley Mtn. 3/1/88 San Bernardino Twentynine Palms SC Valyermo 7/1/74 Los Angeles SC Ventura 7/26/78 Ventura Ventura (San SC Buenaventura) Vine Hill 7/1/93 Contra Costa; Solano Benicia; Concord CC Volcano Peak 1/1/90 Inyo NE Walnut Creek 7/1/93 Contra Costa Concord; Walnut Creek CC Warners Ranch 1/1/80 San Diego SC Warren Peak 11/1/91 Modoc NE Water Valley 3/1/88 San Bernardino SC Watsonville East 1/1/82 San Benito; Santa Clara; CC Santa Cruz Watsonville West 1/1/76 Santa Cruz CC Wells Ranch 7/1/74 San Luis Obispo CC West Ord Mtn. 3/1/88 San Bernardino SC White Hills 1/1/90 Kern; Inyo CC; NE White Mtn. SE 1/1/85 Mono NE White Mtn. SW 1/1/85 Mono NE White Water 6/1/95 Riverside Palm Springs SC Wildomar 1/1/80 Riverside Lake Elsinore SC Willits NE 1/1/82 Mendocino Willits NE Willits NW 7/1/83 Mendocino NE Willits SE 7/1/83 Mendocino NE Wingate Pass 1/1/90 San Bernardino SC Wingate Pass SE1/4 1/1/76 San Bernardino SC Wingate Pass SW1/4 1/1/76 San Bernardino SC Winters Ridge 1/1/76 Kern CC Woodfords 1/1/85 Alpine NE

* The entire state consists of 3 image CD-ROM sets: 20 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 1 ALPHABETIZED LIST OF DIGITAL IMAGES OF Alquist-Priolo Earthquake Fault Zone (EFZ) Maps ISSUE EFZ MAP NAME AFFECTED COUNTY AFFECTED CITY CD SET* DATE Woodside 7/1/74 San Mateo Woodside CC Yermo 3/1/88 San Bernardino SC Yorba Linda 1/1/80 Orange Brea; Yorba Linda SC Yucaipa 1/1/79 San Bernardino Redlands; Yucaipa SC Yucca Valley North 7/1/93 San Bernardino Yucca Valley SC Yucca Valley South 7/1/93 Riverside; San Bernardino Yucca Valley SC Zaca Creek 7/1/86 Santa Barbara SC

* The entire state consists of 3 image CD-ROM sets: 21 · SC = Southern Region · CC = Central Coastal Region · NE = Northern and Eastern Region TABLE 2 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY COUNTY

County EFZ Maps Affecting County

1. Altamont 7. Hayward 13. Niles 2. Byron Hot Springs 8. La Costa Valley 14. Oakland East 3. Calaveras Reservoir 9. Livermore 15. Oakland West Alameda 4. Cedar Mtn. 10. Midway 16. Richmond 5. Dublin 11. Milpitas 17. San Leandro 6. Eylar Mtn. 12. Newark Alpine 1. Markleeville 2. Minden 3. Woodfords Butte 1. Bangor 1. Byron Hot Springs 4. Dublin 7. Tassajara Contra Costa 2. Clayton 5. Mare Island 8. Vine Hill (formerly Port Chicago) 3. Diablo 6. Richmond 9. Walnut Creek Fresno 1. Alcalde Hills 2. Ortigalita Peak 1. Arcata North 4. Fortuna 7. Shelter Cove (formerly Point Humboldt 2. Arcata South 5. Hydesville Delgada SE1/4) 3. Fields Landing 6. Korbel 8. Trinidad 1. Alamorio 7. Carrizo Mtn. 13. Holtville West 2. Bonds Corner 8. Durmid 14. Kane Spring 3. Borrego Mountain SE 9. El Centro 15. Plaster City NW Imperial 4. Brawley 10. Frink 16. Seeley 5. Brawley NW 11. Frink NW 17. Shell Reef 6. Calexico 12. Harpers Well 18. Superstition Mtn. 1. Badwater 23. Fall Canyon 45. Mt. Williamson 2. Ballarat 24. Fish Springs 46. Nova Canyon 3. Bartlett 25. Furnace Creek 47. Olancha 4. Beatty Junction 26. Gold Valley 48. Panamint Butte 5. Bee Springs Canyon 27. Grotto Canyon 49. Panamint Springs 6. Big Pine NE1/4 28. Hanaupah Canyon 50. Pearsonville 7. Bishop NE1/4 29. Horse Thief Canyon 51. Revenue Canyon 8. Bishop NW1/4 30. Independence 52. Rovana 9. Bishop SE1/4 31. Jail Canyon 53. Scottys Castle 10. Bishop SW1/4 32. Kearsarge Peak 54. Shore Line Butte 11. Blackrock 33. Last Chance Mtn. 55. Soldier Pass Inyo 12. Cactus Peak 34. Little Lake 56. Stovepipe Wells NE 13. Chocolate Mtn. 35. Lone Pine 57. Sylvania Canyon 14. Confidence Hills East 36. Manly Fall 58. The Dunes 15. Confidence Hills West 37. Manzanar 59. Tinemaha Reservoir 16. Copper Queen Canyon 38. Maturango Peak NE 60. Tule Canyon 17. Dantes View 39. Maturango Peak SE 61. Tungsten Hills 18. Deep Springs Lake 40. Mesquite Flat 62. Ubehebe Crater 19. Devils Golf Course 41. Mormon Point 63. Uhlmeyer Spring 20. Dry Bone Canyon 42. Mount Tom 64. Union Wash 21. East of Tin Mountain 43. Mt. Langley 65. Volcano Peak 22. Emigrant Pass 44. Mt. Morgan 66. White Hills 1. Apache Canyon 16. Garlock 33. Packwood Creek 2. Arvin 17. Grapevine 34. Pastoria Creek 3. Ballinger Canyon 18. Holland Canyon 35. Pearsonville 4. Bear Mountain 19. Inyokern 36. Pleito Hills 5. Breckenridge Mountain 20. La Panza NE 37. Pond SE1/4 21. Las Yeguas Ranch 38. Ridgecrest North 6. Breckenridge Mountain 22. Lebec 39. Ridgecrest South SW1/4 23. Liebre Twins 40. Rio Bravo Ranch Kern 7. Cantil 24. Mettler 41. Saltdale SE 8. Cinco 25. Mojave 42. Santiago Creek 9. Coal Oil Canyon 26. Mojave NE1/4 43. Sawmill Mountain 10. Conner SW 27. Mojave NW1/4 44. Taft 11. Cuddy Valley 28. Monolith 45. Tehachapi South 12. Eagle Rest Peak 29. North of Oildale 46. Tylerhorse Canyon 13. Edison 30. Oil Center 47. White Hills 14. El Paso Peaks 31. Oildale 48. Winters Ridge 15. Frazier Mtn. 32. Orchard Peak

22 TABLE 2 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY COUNTY

County EFZ Maps Affecting County 1. Clearlake Highlands 4. Jericho Valley 7. Potato Hill Lake 2. Elk Mountain 5. Kelseyville 8. Sanhedrin Mtn. 3. Hull Mountain 6. Lake Pillsbury 1. Calneva Lake 5. McKesick Peak 9. Standish 2. Constantia 6. Milford 10. Stony Ridge Lassen 3. Doyle 7. Pittville 11. Swains Hole 4. Herlong 8. Snake Lake 1. Beverly Hills 12. Lake Hughes 23. Newhall 2. Burbank 13. Lebec 24. Oat Mountain 3. Burnt Peak 14. Liebre Mtn. 25. Palmdale 4. Del Sur 15. Littlerock 26. Point Dume 5. El Monte 16. Long Beach 27. Ritter Ridge Los Angeles 6. Frazier Mtn. 17. Los Alamitos 28. San Fernando 7. Hollywood 18. Los Angeles 29. Sleepy Valley 8. Inglewood 19. Malibu Beach 30. Sunland 9. Juniper Hills 20. Mescal Creek 31. Torrance 10. La Habra 21. Mount San Antonio 32. Valyermo 11. La Liebre Ranch 22. Mt. Wilson 1. Bodega Head 4. Drakes Bay 7. Tomales Marin 2. Bolinas 5. Inverness 8. Valley Ford 3. Double Point 6. Point Reyes NE 1. Elledge Peak 7. Ornbaun Valley SW1/4 13. Ukiah 2. Gualala 8. Point Arena 14. Willits NE 3. Hopland 9. Point Arena NE1/4 15. Willits NW Mendocino 4. Laytonville 10. Purdys Gardens 16. Willits SE 5. Longvale 11. Redwood Valley 6. Mallo Pass Creek 12. Sanhedrin Mtn. 1. Crevison Peak 3. Ortigalita Peak 5. Pacheco Pass Merced 2. Los Banos Valley 4. Ortigalita Peak NW 6. San Luis Dam 1. Cedarville 4. Fort Bidwell 7. Timbered Crater Modoc 2. Eagle Peak 5. Lake City 8. Warren Peak 3. Eagleville 6. Snake Lake 1. Bishop NE1/4 11. Fales Hot Springs 21. Mt. Morrison NE1/4 2. Bishop NW1/4 12. Fales Hot Springs SE1/4 22. Mt. Morrison NW1/4 3. Bodie NW1/4 13. Indian Garden Creek 23. Mt. Morrison SE1/4 4. Bodie SW1/4 14. Matterhorn Peak NE1/4 24. Rovana 5. Bridgeport SW1/4 15. Mono Craters NE1/4 25. Station Peak Mono 6. Casa Diablo Mtn. SW1/4 16. Mono Craters NW1/4 26. Topaz Lake NE1/4 7. Chocolate Mtn. 17. Mono Craters SE1/4 27. Topaz Lake SE1/4 8. Desert Creek Peak SW1/4 18. Montgomery Peak NW 28. White Mtn. SE 9. Devils Postpile NE1/4 19. Montgomery Peak SW 29. White Mtn. SW 10. Dyer 20. Mt. Morgan 1. Cholame Hills 5. Monarch Peak 9. Smith Mountain 2. Cholame Valley 6. Parkfield 10. Stockdale Mountain Monterey 3. Hepsedam Peak 7. Priest Valley 4. Lonoak 8. Slack Canyon 1. Cordelia 3. Jericho Valley 5. Mt. George Napa 2. Cuttings Wharf 4. Knoxville 1. La Habra 3. Newport Beach 5. Seal Beach Orange 2. Los Alamitos 4. Prado Dam 6. Yorba Linda

23 TABLE 2 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY COUNTY

County EFZ Maps Affecting County 1. Alberhill 17. Idyllwild SE1/4 33. Redlands 2. Beaumont 18. Idyllwild SW1/4 34. Salton 3. Bucksnort Mtn. 19. Indio 35. San Gorgonio Mountain 4. Cabazon 20. Joshua Tree South SE1/4 5. Cathedral City 21. Lake Mathews 36. San Gorgonio Mountain 6. Clark Lake NE 22. Lakeview SW1/4 7. Collins Valley 23. Lost Horse Mtn. SW1/4 37. San Jacinto 8. Corona South 24. Mecca 38. Seven Palms Valley Riverside 9. Desert Hot Springs 25. Morongo Valley SE1/4 39. Sunnymead 10. Durmid 26. Morongo Valley SW1/4 40. Temecula 11. El Casco 27. Mortmar 41. Thermal Canyon 12. Elsinore 28. Murrieta 42. Thousand Palms NE1/4 13. Frink NW 29. Myoma 43. White Water 14. Hemet 30. Orocopia Canyon 44. Wildomar 15. Hemet NE1/4 31. Palm Desert SW1/4 45. Yucca Valley South 16. Idyllwild NW1/4 32. Pechanga 1. Bickmore Canyon 7. Monarch Peak 13. San Juan Bautista 2. Cherry Peak 8. Mt. Harlan 14. Three Sisters 3. Chittenden 9. Paicines 15. Topo Valley San Benito 4. Hepsedam Peak 10. Rock Spring Peak 16. Tres Pinos 5. Hollister 11. San Benito 17. Watsonville East 6. Lonoak 12. San Felipe 1. Apple Valley North 34. Harvard Hill 67. Rattlesnake Canyon 2. Apple Valley South 35. Hector 68. Redlands 3. Avawatz Pass SW1/4 36. Hidalgo Mtn. 69. San Bernardino North 4. Barstow 37. Hidden Spring 70. San Bernardino South 5. Barstow SE 38. Iron Ridge 71. San Gorgonio Mountain 6. Big Bear City 39. Joshua Tree North SE1/4 7. Bighorn Canyon 40. Joshua Tree South 72. San Gorgonio Mountain 8. Bird Spring 41. Keller Peak SW1/4 9. Cady Mountains NW1/4 42. Klinker Mtn. 73. Searles Lake SE1/4 10. Cajon 43. Kramer Hills 74. Silver Bell Mine 11. Camp Rock Mine 44. Landers 75. Sourdough Spring 12. Confidence Hills East 45. Lavic Lake 76. Spangler Hills East 13. Copper Queen Canyon 46. Lavic SE 77. Sunfair 14. Cougar Buttes 47. Leach Lake SE1/4 78. Sunshine Peak 15. Cucamonga Peak 48. Leach Lake SW1/4 79. Superior Lake 16. Cuddeback Lake NW1/4 49. Lockhart 80. Telegraph Peak San Bernardino 17. Daggett 50. Lucerne Valley 81. The Buttes 18. Deadman Lake NW 51. Melville Lake 82. Troy Lake 19. Deadman Lake SE 52. Minneola 83. Turtle Valley 20. Deadman Lake SW 53. Morongo Valley SE1/4 84. Twentynine Palms 21. Devore 54. Morongo Valley SW1/4 85. Twentynine Palms 22. East of Owl Lake 55. Mt. Baldy Mountain 23. El Paso Peaks 56. Mount San Antonio 86. Valley Mtn. 24. Emerson Lake 57. Mud Hills 87. Water Valley 25. Fairview Valley 58. Newberry NE1/4 88. West Ord Mtn. 26. Fawnskin 59. Newberry Springs 89. Wingate Pass 27. Fifteenmile Valley 60. Old Ibex Pass 90. Wingate Pass SE1/4 28. Fremont Peak 61. Old Woman Springs 91. Wingate Pass SW1/4 29. Fry Mountains 62. Opal Mountain 92. Yermo 30. Galway Lake 63. Ord Mountain 93. Yucaipa 31. Goat Mountain 64. Quail Mountains SE1/4 94. Yucca Valley North 32. Grand View Mine 65. Quail Mountains SW1/4 95. Yucca Valley South 33. Harrison Mtn. 66. Queen Mtn. 1. Agua Caliente Springs 9. Clark Lake NE 17. Pala 2. Arroyo Tapiado 10. Collins Valley 18. Pechanga 3. Borrego Mountain 11. Earthquake Valley 19. Point Loma 4. Borrego Mountain SE 12. Fonts Point 20. Ranchita San Diego 5. Borrego Palm Canyon 13. Julian 21. Shell Reef 6. Borrego Sink 14. La Jolla 22. Sweeney Pass 7. Carrizo Mtn. 15. Mesa Grande 23. Warners Ranch 8. Clark Lake 16. Monument Peak

24 TABLE 2 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY COUNTY

County EFZ Maps Affecting County 1. Ballinger Canyon 8. La Panza NE 15. Panorama Hills 2. Burro Mountain 9. Las Yeguas Ranch 16. Piedras Blancas 3. Cholame 10. Maricopa 17. San Luis Obispo San Luis Obispo 4. Cholame Valley 11. McKittrick Summit 18. San Simeon 5. Cuyama 12. Orchard Peak 19. Simmler 6. Elkhorn Hills 13. Packwood Creek 20. Wells Ranch 7. Holland Canyon 14. Painted Rock 1. Ano Nuevo 4. Mindego Hill 7. San Francisco South San Mateo 2. Franklin Point 5. Montara Mountain 8. San Mateo 3. Half Moon Bay 6. Palo Alto 9. Woodside Santa Barbara 1. Zaca Creek 1. Calaveras Reservoir 7. Gilroy Hot Springs 13. Morgan Hill 2. Castle Rock Ridge 8. Laurel 14. Mt. Day 3. Chittenden 9. Lick Observatory 15. Mt. Sizer Santa Clara 4. Cupertino 10. Los Gatos 16. San Felipe 5. Eylar Mtn. 11. Milpitas 17. San Jose East 6. Gilroy 12. Mindego Hill 18. Watsonville East 1. Ano Nuevo 4. Loma Prieta 7. Watsonville East Santa Cruz 2. Chittenden 5. Los Gatos 8. Watsonville West 3. Laurel 6. Mt. Madonna 1. Burney 6. Day 11. Old Station 2. Burney Falls 7. Fall River Mills 12. Pittville Shasta 3. Cassel 8. Hogback Ridge 13. Swains Hole 4. Coble Mountain 9. Jellico 14. Timbered Crater 5. Dana 10. Murken Bench 1. Bray 6. Macdoel 11. Sharp Mtn. 2. Dorris 7. Porcupine Butte 12. Sheep Mountain Siskiyou 3. East of Pondosa 8. Rainbow Mountain 13. Tennant 4. Garner Mtn. 9. Red Rock Lakes 14. Timbered Crater 5. Indian Spring Mountain 10. Sams Neck 1. Cordelia 3. Mt. George Solano 2. Fairfield South 4. Vine Hill (formerly Port Chicago) 1. Annapolis 8. Geyserville 15. Petaluma River 2. Arched Rock 9. Glen Ellen 16. Plantation 3. Asti 10. Healdsburg 17. Santa Rosa Sonoma 4. Bodega Head 11. Jimtown 18. Sears Point 5. Cotati 12. Mark West Springs 19. Stewarts Point 6. Duncans Mills 13. Mount St. Helena 20. Valley Ford 7. Fort Ross 14. Ornbaun Valley SW1/4 Stanislaus 1. Crevison Peak 2. Mustang Peak 1. Camarillo 6. Moorpark 11. Santa Paula Peak 2. Cuddy Valley 7. Newbury Park 12. Saticoy Ventura 3. Fillmore 8. Ojai 13. Simi Valley East 4. Frazier Mtn. 9. Pitas Point 14. Simi Valley West 5. Matilija 10. Santa Paula 15. Ventura Yolo 1. Jericho Valley

25 TABLE 3 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY CITY*

City EFZ Map Effective Date

Cordelia 7/1/93 American Canyon Cuttings Wharf 7/1/83

Arcadia Mt. Wilson 1/1/77

Arcata North 7/1/83 Arcata Arcata South 7/1/83

Oil Center 1/1/85 Bakersfield Rio Bravo Ranch 1/1/85

Beaumont 6/1/95

Banning Cabazon 6/1/95

San Gorgonio Mountain SW1/4 7/1/74

Barstow Barstow SE 3/1/88

Benicia Vine Hill (formerly Port Chicago) 7/1/93

Oakland East 1/1/82

Berkeley Oakland West 1/1/82

Richmond 1/1/82

Bishop NW1/4 1/1/85 Bishop Bishop SW1/4 1/1/85

Brea Yorba Linda 1/1/80

Calimesa El Casco 6/1/95

Camarillo 5/1/98

Camarillo Newbury Park 5/1/99

Santa Paula 5/1/98

Inglewood 7/1/86 Carson Torrance 7/1/86

Cathedral City Seven Palms Valley 1/1/80

* Affected incorporated cities as of March 2000.

26 TABLE 3 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY CITY*

City EFZ Map Effective Date

Indio 7/1/74 Coachella Thermal Canyon 7/1/74

Colton San Bernardino South 1/1/77

Compton Inglewood 7/1/86

Vine Hill 7/1/93 (formerly Port Chicago) Concord Walnut Creek 7/1/93

Corona Corona South 1/1/80

Beverly Hills 7/1/86 Culver City Hollywood 7/1/86

Daly City San Francisco South 1/1/82

Danville Diablo 1/1/82

Desert Hot Springs 1/1/80 Desert Hot Springs Seven Palms Valley 1/1/80

Dublin Dublin 1/1/82

El Cerrito Richmond 1/1/82

Fairfield Cordelia 7/1/93

Fontana Devore 6/1/95

Fortuna 11/1/91 Fortuna Hydesville 11/1/91

Milpitas 1/1/82

Fremont Newark 1/1/82

Niles 1/1/80

Gardena Inglewood 7/1/86

* Affected incorporated cities as of March 2000. TABLE 3 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY CITY*

City EFZ Map Effective Date

Burbank 1/1/79 Glendale Sunland 1/1/79

Hayward 1/1/82 Hayward Newark 1/1/82

Hemet 1/1/80 Hemet San Jacinto 1/1/80

Harrison Mtn. 7/1/74 Highland Redlands 1/1/77

Hollister Hollister 1/1/82

Newport Beach 7/1/86 Huntington Beach Seal Beach 7/1/86

Indio 7/1/74 Indio Lost Horse Mtn. SW1/4 7/1/74

Inglewood Inglewood 7/1/86

La Habra La Habra 11/1/91

La Habra Heights La Habra 11/1/91

Alberhill 1/1/80

Lake Elsinore Elsinore 1/1/80

Wildomar 1/1/80

Livermore Altamont 1/1/82

Redlands 1/1/77 Loma Linda San Bernardino South 1/1/77

Long Beach 7/1/86 Long Beach Los Alamitos 7/1/86

* Affected incorporated cities as of March 2000. TABLE 3 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY CITY*

City EFZ Map Effective Date

Beverly Hills 7/1/86

Burbank 1/1/79

Hollywood 7/1/86

Inglewood 7/1/86 Los Angeles Los Angeles 1/1/77

Oat Mountain 1/1/76

San Fernando 1/1/79

Sunland 1/1/79

Malibu Beach 6/1/95 Malibu Point Dume 6/1/95

Devils Postpile NE1/4 1/1/85 Mammoth Lakes Mt. Morrison NW1/4 1/1/82

Calaveras Reservoir 1/1/82 Milpitas Milpitas 1/1/82

Monrovia Mt. Wilson 1/1/77

Moorpark 5/1/99 Moorpark Simi Valley West 5/1/99

El Casco 6/1/95 Moreno Valley Sunnymead 7/1/74

Morgan Hill Mt. Sizer 1/1/82

Murrieta Murrieta 1/1/90

Oakland East 1/1/82 Oakland San Leandro 1/1/82

Pacifica San Francisco South 1/1/82

* Affected incorporated cities as of March 2000. TABLE 3 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY CITY*

City EFZ Map Effective Date

Desert Hot Springs 1/1/80 Palm Springs White Water 6/1/95

Palmdale 1/1/79

Palmdale Ritter Ridge 1/1/79

Sleepy Valley 1/1/79

Palo Alto Mindego Hill 7/1/74

Pasadena Los Angeles 1/1/77

Dublin 1/1/82

Pleasanton Livermore 1/1/82

Niles 1/1/80

Mindego Hill 7/1/74 Portola Valley Palo Alto 7/1/74

Cucamonga Peak 6/1/95

Rancho Cucamonga Devore 6/1/95

Mt. Baldy 6/1/95

Redlands 1/1/77 Redlands Yucaipa 1/1/79

Devore 6/1/95

Rialto San Bernardino North 7/1/74

San Bernardino South 1/1/77

Mare Island 1/1/82 Richmond Richmond 1/1/82

Ridgecrest North 1/1/90 Ridgecrest Ridgecrest South 1/1/90

Rosemead El Monte 11/1/91

* Affected incorporated cities as of March 2000. TABLE 3 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY CITY*

City EFZ Map Effective Date

Devore 6/1/95

Harrison Mtn. 7/1/74 San Bernardino San Bernardino North 7/1/74

San Bernardino South 1/1/77

Montara Mountain 1/1/82 San Bruno San Francisco South 1/1/82

La Jolla 11/1/91 San Diego Point Loma 11/1/91

San Fernando San Fernando 1/1/79

Lakeview 3/1/88 San Jacinto San Jacinto 1/1/80

Calaveras Reservoir 1/1/82

Lick Observatory 1/1/82

San Jose Morgan Hill 1/1/82

Mt. Sizer 1/1/82

San Jose East 1/1/82

San Juan Bautista San Juan Bautista 7/1/74

Hayward 1/1/82 San Leandro San Leandro 1/1/82

San Luis Obispo San Luis Obispo 1/1/90

El Monte 11/1/91

San Marino Los Angeles 1/1/77

Mt. Wilson 1/1/77

San Pablo Richmond 1/1/82

* Affected incorporated cities as of March 2000. TABLE 3 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY CITY*

City EFZ Map Effective Date

Diablo 1/1/82 San Ramon Dublin 1/1/82

Newhall 6/1/95 Santa Clarita Oat Mountain 1/1/76

Santa Rosa Santa Rosa 7/1/83

Los Alamitos 7/1/86 Seal Beach Seal Beach 7/1/86

Signal Hill Long Beach 7/1/86

Simi Valley East 5/1/99 Simi Valley Simi Valley West 5/1/99

South Pasadena Los Angeles 1/1/77

South San Francisco San Francisco South 1/1/82

Murrieta 1/1/90

Temecula Pechanga 1/1/90

Temecula 1/1/90

Trinidad Trinidad 7/1/83

Queen Mtn. 3/1/88

Sunfair 3/1/88

Twentynine Palms Twentynine Palms 3/1/88

Twentynine Palms Mountain 3/1/88

Valley Mtn. 3/1/88

Newark 1/1/82 Union City Niles 1/1/80

Upland Mt. Baldy 6/1/95

* Affected incorporated cities as of March 2000. TABLE 3 ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAPS BY CITY*

City EFZ Map Effective Date

Ventura Saticoy 7/26/78 (San Buenaventura) Ventura 7/26/78

Clayton 7/1/93 Walnut Creek Walnut Creek 7/1/93

Whittier La Habra 11/1/91

Willits Willits NE 1/1/82

Windsor Healdsburg 7/1/83

Palo Alto 7/1/74 Woodside Woodside 7/1/74

Prado Dam 1/1/80 Yorba Linda Yorba Linda 1/1/80

San Gorgonio Mountain SW1/4 7/1/74 Yucaipa Yucaipa 1/1/79

Joshua Tree South 7/1/93

Yucca Valley Yucca Valley North 7/1/93

Yucca Valley South 7/1/93

* Affected incorporated cities as of March 2000. TABLE 4 CD-ROM SETS LISTING AFFECTED COUNTIES AND CITIES

CD-ROM COUNTIES CITIES AFFECTED SET* AFFECTED Arcadia Indio San Bernardino Banning Inglewood San Diego Barstow La Habra San Fernando Brea La Habra Heights San Jacinto Calimesa Lake Elsinore San Marino Camarillo Loma Linda Santa Clarita Imperial Carson Long Beach Seal Beach Los Angeles Cathedral City Los Angeles Signal Hill Orange Coachella Malibu Simi Valley SOUTHERN Riverside Colton Monrovia South Pasadena REGION San Bernardino Compton Moorpark Temecula San Diego Corona Moreno Valley Twentynine Palms Santa Barbara Culver City Murrieta Upland Ventura Desert Hot Springs Palm Springs Ventura (San Fontana Palmdale Buenaventura) Gardena Pasadena Whittier Glendale Rancho Cucamonga Yorba Linda Hemet Redlands Yucaipa Highland Rialto Yucca Valley Huntington Beach Rosemead Alameda Contra Costa Fresno Kern American Canyon Hollister San Jose Lake Bakersfield Livermore San Juan Bautista Marin Benicia Milpitas San Leandro Merced Berkeley Morgan Hill San Luis Obispo Monterey Concord Oakland San Pablo CENTRAL Napa Daly City Pacifica San Ramon COASTAL San Benito Danville Palo Alto Santa Rosa REGION San Luis Obispo Dublin Pleasanton South San Francisco San Mateo El Cerrito Portola Valley Union City Santa Clara Fairfield Richmond Walnut Creek Santa Cruz Fremont Ridgecrest Windsor Solano Hayward San Bruno Woodside Sonoma Stanislaus Yolo Alpine Butte Humboldt NORTHERN Inyo AND Lassen Arcata Fortuna Trinidad EASTERN Mendocino Bishop Mammoth Lakes Willits REGION* Modoc Mono Shasta Siskiyou *Shaded portions indicate region included in this CD-ROM