2019-11-202022-02-032019-11-202022-02-03https://hdl.handle.net/11124/173447Donor: Colorado Mining Association.Motor and equipment in front of canvas tent, with mine dumps and a forested slope in the background.Caption reads: "Lake 12."4 1/2 x 3 1/2 inchesblack-and-white photographsCopyright retained by Colorado Mining Association.Mining -- Machinery and equipment -- ColoradoMining machinery -- Colorado -- Lake CountyMine buildings -- Colorado -- Lake CountyMine dumps -- Colorado -- Lake CountyStillImage