Geologic Characteristics of Sediment-and Volcanic-hosted Disseminated Gold Deposits--search for an Occurrence Model: Issue 1646

Uranium Deposits in the Eureka Gulch Area, Central City District, Gilpin County, Colorado: Issue 1032

Tertiary Mineralization and Hydrothermal Alteration in the Stinkingwater Mining Region, Park County, Wyoming: Issues 1332-1335