2019-12-092022-02-032019-12-092022-02-03https://hdl.handle.net/11124/173737Donor: Colorado Mining Association.Caption reads: "May 1948. San Juan County, D-7 Bulldozer. Opening road to Treasurer Mt. Gold Mining Co."A bulldozer clearing snow from the road to the Treasurer Mountain Gold Mining Company property.4 1/2 x 7 inchesblack-and-white photographsCopyright retained by Colorado Mining Association.Underground mining -- ColoradoBulldozers -- Colorado -- San Juan CountySnow removal -- Colorado -- San Juan CountyRoads -- Snow and ice control -- Colorado -- San Juan CountyStillImage