Two letters to Emmett Thurmon of Denver regarding mineral character of the Arapahoe group, Ward district, Boulder County

Bancroft, George J.2017-12-112022-02-032017-12-112022-02-03https://hdl.handle.net/11124/171953Mine report no. 696.Includes maps.Typescript.reportsengIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Mines and mineral resources -- Colorado -- Boulder CountyMining claims -- Colorado -- Boulder CountyTwo letters to Emmett Thurmon of Denver regarding mineral character of the Arapahoe group, Ward district, Boulder CountyText