• 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?

Refugee Camp at the Presidio

In the aftermath of the 1906 San Francisco earthquake, nearly 250,000 people were left homeless.  The Army responded quickly, establishing refugee camps on the Presidio and organizing relief efforts.