A photo of Tomales Bay.
By Geology and Ecology of National Parks
June 1990 (approx.)
Detailed Description
Water-line view of the granitic rocks exposed along the western shore of Tomales Bay (in Tomales Bay State Park). The granitic rock is part of the Salinian crystalline basement rocks. Franciscan rocks underlie the landscape on the eastern shore of Tomales Bay.
Sources/Usage
A photo of Tomales Bay.