California History Photograph Collections

Library of Congress: American Memory Collection

California As I Saw It

The Chinese in California

Calisphere - A World of Digital Resources

California Cultures

California Historical Society

Picture This: California Museum of California

Online Archive of California

California Historical Society Collections

California State Library - Picture Catalog

Photographs of Old America: California

UC Davis History Project Image Collection

Gold Rush Photographs

Central Pacific Railroad Photographic History Museum

Transcontinental Railroad Pictures

Hydraulic Mining

Chinese-American Contributions