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California Geologic Maps
Website for US and limited Canadian deliveries only.

USGS Geologic Map of the San Francisco Bay Region
R.W. Graymer, B.C. Moring, G.J. Saucedo, C.M. Wentworth, E.E. Brabb, and K.L. Knudsen
Published in commemoration of the 100th anniversary of the 1906 earthquake
A technical map directed toward a general audience.  The map has the standard features of geologic maps, but in addition, includes informative text on such topics as:
What is a geologic map?
Why make a geologic map?
Geologic time and the age of rocks
Geologic materials (illustrated with color photos)
Rocks from somewhere else (with small maps)
Sliced up (describing earth movements from faulting)
Why are there no dinosaur fossils in the San Francisco Bay Region? (illustrated)
A list of map units keys you to the color coding used on the map.

The map covers all of Sonoma, Napa, Solano, Marin, Contra Costa, San Francisco, Alameda, San Mateo, Santa Cruz, and Santa Clara counties, plus northernmost San Benito and Monterey counties (including the Monterey Peninsula, Point Lobos, and the northern part of Pinnacles National Monument).

Scale, 1:275,000 (1 inch = about 4.3 miles).  Size: about 36 x 48 inches.  Rolled.  Sturdy coated paper.
Published by US Geological Survey (prepared in cooperation with the California Geological Survey), 2006.  New.
Item #USGS-206043.  Shipping weight: 1.5 lbs.  Publisher’s price: $7.00.  Your price: $7.00  
Sent rolled at tubed map rate only.  Please order rolled maps separately from other kinds of items on this website.  Rolled maps require separate packaging and a separate shipping fee.

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