Geologic map of the Alpine quadrangle, San Diego County, California
By: by Victoria R. Todd.
Series: Open-file report / United States Geological Survey -- 80-82.; Open-file report (Geological Survey (U.S.)) -- 80-82.
Publisher: U.S. Geological Survey
Published: 1980
Place of publication: [Reston, Va.]
Language: eng
Subjects: Geology -- California -- San Diego County -- Maps.
Genres: Maps.
Notes: Text in V.F.