Bancroft, George J.2018-11-052022-02-032018-11-052022-02-03https://hdl.handle.net/11124/172694Mine report no. 1189.Includes map.Typescript (carbon copy).reportsengIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Mines and mineral resources -- Colorado -- Jefferson CountyFluorspar -- Colorado -- EvergreenCopper -- Colorado -- EvergreenZinc -- Colorado -- EvergreenText