Armstrong, F. C.2017-08-282022-02-032017-08-282022-02-03https://hdl.handle.net/11124/171532Mine report no. 148."Report furnished by E.A. Hitchcock.""Magnolia Mining District, Boulder County, Colorado."Typescript (carbon copy).reportsengIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Mines and mineral resources -- Colorado -- Boulder CountyMining claims -- Colorado -- Boulder CountyZephyr Lode (Colo.)Cyclone Lode (Colo.)Magnolia Mining District (Colo.)Text