2019-11-082022-02-032019-11-082022-02-03https://hdl.handle.net/11124/173379Donor: Colorado Mining Association.A miner stands in the main haulage tunnel at the Los Ochos mine.Caption reads: "Main haulage Los Ochos Mine, Gunnison Mng Co.; CMA 1960 y-B."5 x 4 inchesblack-and-white photographsCopyright retained by Colorado Mining Association.Underground mines -- ColoradoViews -- UndergroundUranium mines and mining -- Colorado -- Saguache CountyMiners -- Colorado -- Saguache CountyLos Ochos Mine (Colo.)StillImage