2020-10-072022-02-032020-10-072022-02-03https://hdl.handle.net/11124/175128Caption reads: "Eagle M and M Co. Mill, Redcliff, Colo."Donor: Friends of Mineralogy, Colorado Chapter.Mill, Eagle Mining and Milling Company, on the banks of the Eagle River near Gilman.3 1/2 x 5 1/2 inchespostcardsUnderground mining -- ColoradoMineral processing plantsZinc mines and mining -- ColoradoMills and mill-work -- ColoradoStillImage