2022-12-082022-12-08https://hdl.handle.net/11124/15569Scale approximately 1:360. 1 inch = 30 feet.Linen.Pen-and-ink.Shows underground workings."A.E.R." July 1, 1925.28 x 22 cmmine mapsmanuscript mapsengNo Known Copyright: http://rightsstatements.org/vocab/NKC/1.0/.Mines and mineral resources -- Colorado -- Dolores County -- MapsMine valuation -- Colorado -- Dolores County -- MapsStillImage