2017-08-112022-02-032017-08-112022-02-031900-1999https://hdl.handle.net/11124/171381Scale 1:900. 1 inch = 75 feet.Blueline copy.Three profiles on 1 sheet.Shows mining tunnels.71 x 96 cmmine mapsengMineral industries -- Colorado -- Custer County -- MapsTunnels -- Colorado -- Custer County -- MapsStillImage