Report of the Hydraulic Mining commission and large regional map illustrating the region where the restart of hydraulic mining was being contemplated in California in the 1920s. The report was prepared at a time period when California was considering...
![[California] Panorama of Progress -- California State Fair America's Largest Ten Day State Fair](/map/small/69899.jpg)
Fascinating pictorial map of California, prepared for the 87th Annual California State Fair, held between August 29, 1941 to September 7, 1941. The map presents a fascinating image of California, partitioned in 58 "color-laden" counties, each looking...
