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Geologic Maps

Indexes to Geologic Maps of California

The Madden Library has many of the maps identified through the sources below:
Use OneSearch and search for Fresno State Books & Media


Geologic Map of California, Fresno sheet 1:250,000
Map (PDF, 11.6MB)  Explanation (PDF, 3.0MB)
1st floor, Maps vertical G 4361 .C5 s250 .F7
   • Some parts of Fresno County are on other sheets: Index to Geologic Map of California (1:250,000)

National Geologic Map Database
  • National Geologic Map Database Catalog Search U.S. Geological Survey

Index to USGS Geologic Maps of California by Joe Crotts, Meriam Library, CSU Chico
Scroll down to Information: and open the tab with this title at the bottom of the list
Correlates USGS geologic maps of California with 7.5- and 15-minute topographic quadrangles.
Includes maps with scales of 1:125,000 and larger.

California Geological Survey (formerly California Division of Mines and Geology)
     • Index to Geologic Mapping in California
     • California Geological Survey Publications
     • Online Maps and Data

List of U.S. Geological Survey Geologic and Water-Supply Reports and Maps for California
1st floor, Maps Reference Z 7935 .L58 1987

Consolidated Index of Publications of the [Calif.] Division of Mines and Predecessor State Mining Bureau (1880-1943)
1st floor, Government Information, Reference   TN 24 .C2 A3 no.131

Geologic Map Index of California
1st floor, Maps Reference   G 4361 C5 1987 F8

Index to Geologic Maps of California
1st floor, Maps Reference   TN 24.C2 A33 nos 52, 52a-b, 130, and supplements for 1976-78