From introduction: This report presents the geologic results of an exploration program conducted by the USGS in the Lost Creek area of Wyoming.

Abstract: "This report, designed to make available to field geologists and others information on identification and occurrence of uranium minerals of the Colorado Plateaus, contains physical properties, X-ray data, and in some instances results of chemical and spectrographic analysis of 24 uranium and 17 vanadium minerals. Also included is a table giving the optical properties of uranium minerals and a list of locations of mines from which the minerals have been identified."

Report discussing a geological examination that took place in August 1950. During this examination, an area about 6 miles north of Sundance in the Bear Lodge Mountains of Crook County, Wyoming, was examined for thorium, uranium, and rare-earth oxides and samples were collected.

A report regarding a preliminary reconnaissance survey for thorium, uranium, and rare-earth oxides in the bear lodge mountains, in Crook County, Wyoming. "The purpose of this reconnaissance was to obtain information on the mode of occurrence, extent, and reserves of these deposits. This work was done on behalf of the Division of Raw Materials of the Atomic Energy Commission."

Preliminary report discussing uranium that was found in the basal limestone of the Sundance formation of late Jurassic age on the east flank of the Bighorn Mountains in Johnson County, Wyoming. The report provides information regarding geographic setting, geologic setting, stratigraphy, uranium occurrence localities, and origin of uranium in the Mayoworth area.

A preliminary report, discussing uranium in the Mayoworth Area in Johnson County, Wyoming