Preliminary Quaternary geologic maps of Santa Clara Valley, Santa Clara, Alameda, and San Mateo counties, California : a digital database / by E.J. Helley [and others].

Other author Helley, Edward J.
Other author Geological Survey (U.S.)
Format Microform
Publication Info[Menlo Park, Calif.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo.] : [For sale by Open-File Reports Section], 1994.
Description8 leaves : illustrations ; 28 cm.
Subjects

SeriesOpen-file report ; 94-231
U.S. Geological Survey open-file report 94-231. ^A632201
General noteCover title.
General noteDistributed to depository libraries in microfiche.
General noteShipping list no.: 95-0614-M.
Bibliography noteIncludes bibliographical references (leaf 7).
Reproduction noteJoyner- Microfiche. [Denver, Colo. : U.S. Geological Survey, 1995] 1 microfiche : negative.
GPO item number0624-H (MF)
Govt. docs number I 19.76:94-231