Sebben, Edward W.2017-08-142022-02-032017-08-142022-02-031906https://hdl.handle.net/11124/171398Blueline negative copy; photocopy.Relief shown by hachures.Shows mining claims.Covers parts of Gilpin County, Colorado. Covers parts of the Central City quadrangle, Colorado.77 x 69 cmmine mapsengMining claims -- Colorado -- Gilpin County -- MapsMines and mineral resources -- Colorado -- Gilpin County -- MapsStillImage