2019-12-032022-02-032019-12-032022-02-03https://hdl.handle.net/11124/173579Donor: Colorado Mining Association.A wagon drill in front of the Minerals Engineering Company building.Caption reads: "Minerals Engineering Company wagon drill."4 1/2 x 3 1/2 inchesblack-and-white photographsCopyright retained by Colorado Mining Association.Mining -- Machinery and equipmentMinerals Engineering CompanyWagon drills (Pneumatic machinery) -- Colorado -- Mesa CountyUranium mines and mining -- Colorado -- Mesa CountyStillImage