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1999-0502 PHOTO: MINES & MINING: GOLD: METHODS.: PLACER: HYDRAULIC: PLACER CO. View of miners along hillside with water cannon washing away soil; two boys sitting in foreground watching activity. Hydraulic mining was declared illegal in 1884. The postcard dates from ca. 1906. Date of image not determined.
Photographs. Nonprojected graphic
1 photoprint as a postcard ; 3 1/2 x 5 1/2 in.
Hydraulic mining--California--Placer County Gold mining--California--Placer County Mining--California--Placer County Gold miners--California--Placer County Placer County (Calif.)--Photographs Photographic prints Photographic postcards