Abstract: A radiometric reconnaissance, using a portable beta-gamma survey meter, of some geologic formations ranging in age from Cambrian to Cretaceous, and springs in southeastern Idaho, western Wyoming, and northern Utah, has shown that none of them are sufficiently radioactive to warrant further examination of them in the area.

Report discussing investigation of the relation of uranium and phosphate in the Phosphoria formation and its close stratigraphic equivalents.

Photograph of a man driving a turn-of-the-century car on a dirt road in front of a house.

Photograph of two men in a turn-of-the-century car driving on a dirt road.

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 abstract: An airborne radioactivity survey of a selected area in the Red Desert, Sweetwater County, Wyoming, containing outcrops of radioactive lignites and shales of known surface extent and uranium content, was flown on flight lines at three levels, respectively 250, 500, and 1,000 feet above the ground and spaced at one-quarter mile intervals. Measurements from three identical dual-channel radiation detectors were simultaneously recorded to obtain data at various distances from natural radioactive sources of known configuration. The radiation intensity measurements were fully corrected for all extraneous effects and were compiled as profiles of radiation intensity, as an isoradioactivity contour map, and as curves showing the relationship between radiation intensity and distance from the source.

Report documenting the suitability of Wyoming and Idaho for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest.

From introduction: The investigations that are the subject of this report were to appraise the uranium resources of the Red Desert area, and to accumulate data concerning the geology of uranium. Knowledge of the genesis of the schroeckingerite is necessary for a clear appraisal of the deposit.

From introduction: The reconnaissance was made during the summer of 1951 by two field parties: (1) a reconnaissance in parts of Oklahoma, Texas, New Mexico, and Arizona by Russell Gibson, and (2) Geological Survey reconnaissance in parts of New Mexico,.Colorado, Utah, Idaho, and Wyoming (by the writers), the results of which are summarized in this report.

Letter from Thos. L. James to D. W. Kempner discussing various cattle operations, including ranches and ranch sales, which were covered in attached magazines. James also discusses the possibility of a cattle purchase and sale.

A color print photograph of Santa Fe (ATSF) 1852, 2-6-2, and 1431, 4-6-2, double-heading on passenger train No. 101 "Centennial State", south of Littleton, CO, 13 cars, 60 mph.

A Christmas card from Richard H. Kindig with a photograph of Union Pacific (UP) 3991-3965, double-heading on a mixed freight, starting up Sherman Hill, west of Cheyenne, WY. [watermark Nov. 1978]

From Introduction: "A preliminary report of the work was published in April 1947, and this bulletin supplements Report of Investigations 4104 and describes the results of the entire investigation."

From abstract: A reconnaissance search for uraniferous rocks in the northeastern part of the Wind River Basin was made in July and August 1951 in the course of other work. In addition to Tertiary tuffs and associated lignite, coal, and carbonaceous rocks, some radioactivity anomalies, chiefly in granite, which had been detected by airborne equipment in November 1950, were checked on the ground. A tuff of middle or late Eocene age containing 0.003 percent uranium was as high in uranium as any rock found.

Union Pacific Railroad's "Portland Rose" train No. 17, a modern streamliner powered by four diesel units with a consist of thirteen cars, making a stop in Wyoming, circa 1952. Mountains are seen in the background.

Summary: The Lost Creek schroeckingerite deposit in Sweetwater County, Wyo., has attracted attention in the past both as an occurrence of comparatively rare minerals and more recently as a possible source of uranium ore. During the summer of 1948 a newly-formed company by the name of Uranium, Inc., explored part of the deposit by bulldozer trenching and drilling. under the technical direction of the Minerals Engineering Company of Grand Junction, Colo. Examination of the significant exposures of the schroeckingerite deposit indicated that the uraniferous beds are discontinuous and that their areal distribution is erratic. The overburden has an average thickness of 2.5 feet.

Photograph taken for a newspaper owned by the Oklahoma Publishing Company.

Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "The army may be mechanized but it still has a job for a stable sergent with a moustache like Sgt. Lawrence Cnossen, Newcastle Wyo. who is stationed at Fort Reno."

A photograph postcard showing the Union Pacific (UP) 5516, 2-10-2, 5093, 4-10-2, 9010, 4-12-2, and 3709, 4-6-6-4, on westbound freight extra, near Ozone, WY, 68 cars, 30 mph.

A photograph postcard showing the Union Pacific (UP) 5516, 2-10-2, 5093, 4-10-2, 9010, 4-12-2, and 3709, 4-6-6-4, on westbound freight extra, near Buford, WY, 68 cars, 35 mph.

Report discussing an investigation of copper deposits in sandstone that were believed to be possibly uraniferous, and uraniferous asphaltite deposits.

A photograph postcard showing the Union Pacific (UP) 4001 & 4008, 4-8-8-4's, on westbound freight extra, approaching Sherman, WY, 103 cars, 40 mph (raining).

A photograph postcard showing the Union Pacific (UP) 4001 & 4008, 4-8-8-4's, on freight extra, standing at Borie, WY.

A photograph postcard showing the Union Pacific (UP) 4001 & 4008, 4-8-8-4's, on westbound freight extra, at Granite Canon, WY, 103 cars, 20 mph'