View of mine operations or a gravel plant in (probably) Colorado; a processing building has a drive through loading chute. Ponds, railroad grade, a town, mountains and cirrus clouds are in the distance.
Sand and gravel plants--Colorado--1940-1950.; Mining--Colorado--1940-1950.
Interior view of an office at the London Mine in (possibly) Alma, (Park County), Colorado; men and a woman work at desks with ink bottles, a pencil sharpener, and ledgers. Safe and adding machine read: "Charpiot Safe Co. Denver, Colo," and "Monroe."