ARC/INFO export files Description of coverage an_sp-py.e00 Quaternary geology in Antioch North quadrangle as_sp-py.e00 Antioch South quadrangle be_sp-py.e00 Benicia quadrangle bh_sp-py.e00 Byron Hot Springs quadrangle bi_sp-py.e00 Bouldin Island quadrangle bv_sp-py.e00 Briones Valley quadrangle bw_sp-py.e00 Brentwood quadrangle cf_sp-py.e00 Clifton Court Forebay quadrangle cl_sp-py.e00 Clayton quadrangle di_sp-py.e00 Diablo quadrangle du_sp-py.e00 Dublin quadrangle hb_sp-py.e00 Honker Bay quadrangle ji_sp-py.e00 Jersey Island quadrangle lt_sp-py.e00 Las Trampas Ridge quadrangle lv_sp-py.e00 Livermore quadrangle mi_sp-py.e00 Mare Island quadrangle oe_sp-py.e00 Oakland East quadrangle ri_sp-py.e00 Richmond quadrangle sq_sp-py.e00 San Quentin quadrangle ta_sp-py.e00 Tassajara quadrangle vh_sp-py.e00 Vine Hill quadrangle wc_sp-py.e00 Walnut Creek quadrangle wi_sp-py.e00 Woodward Island quadrangle ccq_quad.e00 Index map of quadrangles in Contra Costa County ccq_corr.e00 Correlation table for the units in this map database cc_dr-sp.e00 Drainage base map (from 1:100,000 scale originals) cc_cu-sp.e00 Cultural base map (from 1:100,000 scale originals) cc_topo-sp.e00 Topographic contours base map (from 1:100,000 scale originals
This digital geologic map database provides current information on the Quaternary stratigraphy of the area covered.
Are there legal restrictions on access or use of the data?
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.This database, identified as "Quaternary geology of Contra Costa County, and surrounding parts of Alameda, Marin, Sonoma, Solano, Sacramento, and San Joaquin Counties, California: A digital database," has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
|Quaternary geologic units and base map information in format ARCE (version 7.x) Size: 17.3