2019-12-122022-02-032019-12-122022-02-03https://hdl.handle.net/11124/173864Donor: Colorado Mining Association.Caption reads: "Checking the uranium ore with a Geiger counter, Montezuma, Colo. #1."A man using a Geiger counter to check the ore in a cart at the tunnel entrance while two other men and a dog stand nearby.4 1/2 x 3 1/2 inchesblack-and-white photographsCopyright retained by Colorado Mining Association.Underground mining -- ColoradoUranium mines and mining -- Colorado -- Summit CountyMine haulage -- Colorado -- Summit CountyMiners -- Colorado -- Summit CountyStillImage