• East view from Crissy Field overlook with old Coast Guard station on left and city on right

    Presidio of San Francisco

    California

Tectonic Terrane Map

Tectonic terrane map for San Francisco area
Modified from Blake et al. 1984. Tectonostratigraphic terranes of the San Francisco Bay Region. P. 5-22, in Blake, M. C. Jr., ed., Franciscan Geology of Northern California.  Pacific Section SEPM, volume 43.
 
This map shows the eight tectonic terranes of the Franciscon Complex in the San Francisco Bay area, as well as the important San Andreas and Hayward faults. Each terrane is characterized by a specific history of rock deposition and degree of metamorphism.

Did You Know?

Franciscan monk

In 1776, Father Pedro Font wrote, "The port of San Francisco...is a marvel of nature, and might well be called a harbor of harbors...And I think if it could be well settled like Europe there would not be anything more beautiful in all the world."