2020-10-072022-02-032020-10-072022-02-03https://hdl.handle.net/11124/175152Caption reads: "Gilman. 18th Level stations of 16-23 Incline."Donor: Friends of Mineralogy, Colorado Chapter.18 level station on the 16-23 incline, underground at the Gilman number 3 mine.10 x 8 inchesblack-and-white photographsUnderground mines -- ColoradoViews -- UndergroundZinc mines and mining -- ColoradoStillImage