The Geologic Map of California presets an overview of the geology and
structure of the state with sufficient detail to be useful for many purposes.
It should fill the need for a modern geologic wall map (flat) showing the distribution
of the major rock types and the major structural elements of the state. The Geologic
Map of California portrays the geologic setting of mineral deposits of
California and can be used in planning mineral resources investigations.

California is a big state and this is a big map! 5 feet by 4 1/2 feet big.
The geologic features of California overlaid on a topographical map with 500
foot intervals with 100 foot supplementary intervals . The Geologic Map
of California is available either folded (this product) or as a flat sheet.

Note: the image used is from the Generalized Geologic Map of California (1:2,500,000).
The Geologic Map of California, 1977, at the scale of 1:750,000, has
much more geologic detail!