2023-02-272023-02-271900?-1985https://hdl.handle.net/11124/16632Scale approximately 1:360.Annotated in red ink.Blueline.38 x 106 cm and 21 x 58 cmmine mapsengNo Known Copyright: http://rightsstatements.org/vocab/NKC/1.0/.Mines and mineral resources -- Colorado -- Gilpin County -- MapsStillImage