2019-12-092022-02-032019-12-092022-02-03https://hdl.handle.net/11124/173719Donor: Colorado Mining Association.Caption reads: "Lead Carbonate Mines. San Juan."6 x 3 1/2 inchesblack-and-white photographsCopyright retained by Colorado Mining Association.Underground mining -- ColoradoMine dumps -- ColoradoMine buildings -- Colorado -- San Juan CountyMines and mineral resources -- Colorado -- San Juan CountyStillImage