Foster, Ernest Le Neve2017-09-252022-02-032017-09-252022-02-03https://hdl.handle.net/11124/171647Mine report no. 270."Mine Manager's Report, page 349-A, State Bureau of Mines, State of Colorado."Typescript (carbon copy).reportsengIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Pennsylvania Mines CompanyMines and mineral resources -- Colorado -- Summit CountyMining claims -- Colorado -- Summit CountyText