A preliminary report regarding the Browns Hill Prospect Carbon County, Wyoming.

The following report studies uranium ore deposits discovered in the Browns Park Formation, south-central Wyoming and northwest Colorado.

"The accompanying map shows the results of an airborne radioactivity survey in 133 square miles of Saratoga NW quadrangle, Wyoming."

A map of Baggs SW and Baggs SE quadrangles in Carbon and Sweetwater Counties, Wyoming, used in relation to an airborne radioactivity survey of parts of the Quadrangles.

"The accompanying map shows the results of an airborne radioactivity survey in 222 square miles of Savery SW and Savery SE Quadrangles, Carbon County, Wyoming."

"The accompanying map shows the results of an airborne radioactivity survey in 266 squae miles of Savery NW and Savery NE quadrangles, Wyoming"

Discussing the reconnaissance investigation of uranium occurrences in the Saratoga Area, in Carbon County, Wyoming

Report discussing the uranium deposits located in the Miller Hill area of Carbon County, Wyoming. A stratigraphic description of the area is also given.

Report discussing an investigation of the geology of the Miller Hill area in Wyoming. This area's rocks were shown to contain varying amounts of uranium.

Report discussing the investigation of uranium minerals, which were discovered in the Poison Basin area, Carbon County, Wyoming, on October 15, 1953. Information regarding the geographic setting, geologic setting, stratigraphy of the area, uranium occurrences of the area, origin of the uranium, and significance of the area are included.

Photograph of four individuals standing next to a sign along Continental Divide. The sign is brown and made of wood. A structure is located in the background behind the sign and telephone wires are strung across the top of the photo.

Abstract: Uranium occurs in the North Park(?) formation of Pliocene(?) age in the Miller Hill area, about 25 miles south of Rawlins, Carbon County, Wyo. As much as 0. 5 percent uranium is contained in grab samples, but only about 1000 tons of rock are known to contain as much as 0. 03 percent uranium. Beds of brecciated, silicified limestone 3 to 10 feet thick contain the principal concentrations of uranium. Lesser concentrations are found in calcareous sandstone and quartzite. Uranophane, Ca(UOz)2SizO 7 . 6HZO, the principal uranium'mineral, has been deposited in vugs, as fracture and surface coatings, and as a disseminated constituent of the rock. Uranium also occurs in quantities too small to be megascopically visible in dark-colored chalcedony, lime stone, sandstone, and quartzite beds.

From abstract: Uranium deposits and radioactivity anomalies have been found in the eastern half of the area underlain by the Browns Park formation in northwestern Colorado, south-central Wyoming, and northeastern Utah. The deposits are in eolian, lacustrine, and fluvial sandstones, tuffaceous sandstones, and limestones all of which were deposited on two converging pediments during Miocene time. At least one eastern and one western facies of lacustrine and fluvial sedimentary rocks are separated by a belt of eolian sandstones. The faces may be distinguished in the field and by petrographic and heavy-mineral studies in the laboratory.