Report issued by the U.S. Bureau of Mines on the characteristics of oil obtained from the Tensleep Sandstone Reservoir. The samples collected are analyzed for physical characteristics and presented in tables and graphs. The report also includes a map.

From introduction: The compilation of the tectonic map of Wyoming east of the overthrust belt (area 6, fig. 2) was done by the U. S. Geological Survey on behalf of the Division of Raw Materials of the U. S. Atomic Energy Commission. Structures shown on the map have been obtained from published geologic maps and from unpublished data supplied by Government agencies, private companies, and independent geologists. The tectonic map of Wyoming east of the overthrust belt is only a progress report; any suggestions for corrections or additions will be appreciated.

First part of an annual report describing studies conducted by researchers at Columbia University to surveyuranium mineralization in the Marysvale, Utah region: "Part I deals with field studies and mineralogical data derived from the laboratory examination of suites collected during the previous summer" (p. 5).

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Government view of the imports situation will be given to attendants at the mid-year meeting of IPAA at Chicago this week by Gov. Milward L. Simpson of Wyoming, who is also chair of the interstate oil compact commission."

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."

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.

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."

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

A report explaining map symbols for the geologic map of the Northern and Western Flanks of the Black Hills, Wyoming and Montana.

A photograph postcard showing the Union Pacific (UP) 3524, helping diesels 1419, 1494C and 1450 up Sherman Hill on Westbound freight extra, near Corlett, WY, 67 cars, 30 mph.

A photograph postcard showing the Union Pacific (UP) 836, 4-8-4, on eastbound troop train near Buford, WY, 14 cars, 50 mph.