Report circa 18th century on the Collier Group of Mines in Lyon County, Nevada, details the topography and geography, provides a history of the claim's development, reports on the adequacy of the water supply and makes recommendations.

Report to stockholders from Dayton Consolidated mines president, Homer L. Gibson, discussing 1934 operations and expectations for 1935. Accompanying maps show mine tunnels and workings. Report from July 1, 1935.

Included are status reports to stockholders, reports on ore reserves, assay reports, and profit/loss statements. The collection contains material from 1936-1950 created by the Dayton Consolidated Mines.

The Wonder and Wonder Extension Lode were mining claims in Lyon County, Nevada. The collection contains a record of ore mined and milled at Devil's Gate and Chinatown mining districts, Lyon County, Nevada. Included are names of owners, tons milled, date, weight after melt, value of gold and/or silver, mint charges, net returns, and royalties.