2023-02-272023-02-271900?-1985https://hdl.handle.net/11124/16651Scale approximately 1:600. 50 feet = 1 inch.Shows underground workings, Osceola Crosscut, Bootjack and Shoemaker veins, and Nunn mine, in Iron Springs mining district.On sheet 37 x 44mine mapsmanuscript mapsengNo Known Copyright: http://rightsstatements.org/vocab/NKC/1.0/.Mines and mineral resources -- Colorado -- San Miguel County -- MapsIron Springs Mining District (Colo.)StillImage