1932 Map of Northern California Placer Mines by Ca Div. of Mines

22" x 30" lithographic map with hand water color in fine condition. An exceptional document relating to the placer mine locations within the gold region of northern California . Issued by the state of California in 1932. Legend with Placer mines by county with labor and economic benefits related to mining . Hand water color is expert and coordinated to the iconography of the map.