Earl Warren campaigning for governor of California, 1942
Sign warning drivers to watch for crossing migrants, San Diego, 1997
“California Gold Diggers, Mining Operations on the Western Shore of the Sacramento River,” lithograph published by Kellogg & Comstock, circa 1850
Advertisement for ship to California, 1849
Hydraulic mining operation, North Bloomfield Mining and Gravel Company, Nevada County, California, 1870s.
Chinese miners working a sluice mining operation, Auburn Ravine, California, 1852