Includes the Report on the Castro Mining Group located in the Oquirrh Range, West Mining District, Salt Lake County, more familiarly known as Bingham, twenty-five miles southwest of Salt Lake City's 1913 city limits. It includes ten claims comprising 66.14 acres at the head of Bear Gulch and on the eastern slope of Castro Gulch. U.S. Survey Number 3744 and 5024.

Includes the Report on the Copper Acres Group, a collection of claims located thirty miles northwest from Battle Mountain and fifteen miles south of Golconda, Humboldt County, Nevada.

Includes the Articles of Incorporation of the Eureka Tonapah Consolidated Mining Company which owned mining claims in Eureka County, Nevada. Included is the Report on the Windfall Mine in Eureka, Nevada by the Windfall Mining and Milling Company, the predecessor of the aforementioned incorporated company.

Contains correspondence and information relating to the Kaibab Copper Mine near Jacobs Lake, Arizona, in Kaibab National Forest.

Contains correspondence and reports regarding the Piute Mines at the north end of the Kingston Mountains near Inyo County, California. The mining property is twenty miles east of Tecopa.

Contains correspondence and reports relating to the Tintic Mining properties and the Tintic Standard Mining Company. The relevant mining properties are in the North Tintic Mining District or nearly five miles north of the town of Eureka, Utah.