|This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (mageo.t
|Blake, M. Clark, Jr.; Graymer, Russell W.; Jones, D. L.; and Soule, A.
|U.S. Geological Survey Miscellaneous Field Studies Map MF-2337
The polygon coverage of geologic units contains unit symbols and short descriptions. The units are described more fully in the accompanying textual report. The dataset includes a geologic coverage with formations, faults and dikes, a decoration coverage with fault, dike, caldera, and fold symbols, a coverage with strike and dip point data, an oil and gas well location point coverage, a breccia zone overlay coverage, and a latitude and longitude grid coverage.