From abstract: The U. S. Geological Survey made a geophysical investigation on the Gramlich group, Paradox district, Montrose County, Colo., during the period May 26 to July 11, 1952.. Electrical resistivity and self-potential surveys were made to determine the thickness of the upper Salt Wash sandstone and to test electrical prospecting methods in an area of shallow overburden. The investigations were made in conjunction with a diamond-drilling program.

From introduction: This report describes work done in the Denver and Greeley National Topographic Map Series (NTMS) quadrangles (1:250 000 scale) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).

A preliminary reserve statement regarding Reserve Blocks B and C, as well as Mineral Channels 10 and 12 of the Outlaw Mesa, located in Mesa County, Colorado.

A preliminary reserve statement regarding Reserve Block 8 of Club Mesa, located in Montrose County, Colorado

An interim report regarding exploration on Club Mesa, Montrose County, Colorado. Done oin behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

From abstract: A reconnaissance radiometric survey of parts of the northwestern San Juan Mountains has revealed the occurrence of uranium-bearing ores in several mining districts in Ouray and San Juan Counties, and the occurrence of thorium-bearing veins in southwestern Gunnison County.

Report discussing an exploratory drilling program in the Charles T. area and vicinity during the period from November 1947 and September 1949. "The purpose of the exploration was to discover new carnotite deposits to support milling operations on the Colorado Plateau, and to appraise the uranium and vanadium resources of the area explored."

Analysis of geologic, hydrologic, and geophysical data obtained in and around Yellow Creek core hole No. 1, Rio Blanco County, Colorado, indicate a 1,615-foot section of oil shale was penetrated by the hole. Geophysical log data indicate the presence of 25 gallons per ton shale for a thickness of 500 feet may be marginal. The richest section of oil shale is indicated to be centered around a depth of 2,260 feet. Within the oil shale the interval 1,182 to 1,737 feet is indicated to be relatively structurally incompetent and probably permeable. Extension of available regional hydrologic data indicate the oil shale section is probably water bearing and may yield as much as 1,000 gallons per minute. Hydrologic testing in the hole is recommended.

Discussing a reconnaissance carried out for uranium in parts of the San Juan Basin in New Mexico and Colorado

Tables providing data related to rock and water samples collected for the study analyzed for uranium favorability, including sample number, quadrangle name, county, coordinates, geologic code, and elemental analyses. During field work, lithologic and structural features were noted, and samples were collected for gamma-ray spectroscopic, geochemical, and petrologic analyses performed at Grand Junction. The gamma-ray spectroscopic and geochemical analytical results are reported in this dataset.

Report discussing the geology of the Wood vein and East Calhoun mine areas of Gilpin County, Colorado.

This report is a preliminary evaluation of the uranium resources of the Brushy Basin Member of the Morrison Formation of Late Jurassic age in southwestern Colorado and southeastern Utah. The project, which began July 1, 1976, and was completed October 1, 1976, was carried out by the Bendix Field Engineering Corporation (BFEC) for the Grand Junction Office of the U.S. Energy Research and Development Administration (ERDA).

Supplementary data containing locations of uranium deposits in the Brushy Basin project area, Utah and Colorado.

An interim report regarding exploration of the Spring Creek Mesa Area, Montrose Country, Colorado. Concerns work done on behalf of the division of Raw Materials of the U.S. Atomic Energy Commission.

The following report presents aerial gamma ray and magnetic survey data from the Denver and Pueblo quadrangles in Colorado. The data presented in this report are: corrected profiles of all radiometric variables, air temperatures, and airborne bismuth contribution.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Denver Quadrangle in Colorado.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Denver Quadrangle in Colorado.

Report discussing the geology and numerous ore deposits of the Chicago Creek area in Clear Creek County, Colorado. Prior to this report, gold, silver, copper, lead, zinc, and uranium were produced from this area.

Report discussing the results of a geological study of the Idaho Springs-Central City area of the Front Range mineral belt. The study was still in progress at the time of publication.

From abstract: Pitchblende is known to occur in the Jo Reynolds deposit, which was primarily a lead-zinc-silver ore body. The reported production in 1919 of 8 tons of high-grade uranium ore, presumably from the lowest workings of the mine, is still unconfirmed but has a fair degree of credibility.

A report regarding a geological survey of the geology and ore deposits of the Freeland-Lamartine District, Clear Creek County, Colorado. Concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

Report issued by the Bureau of Mines discussing the demands on the oil industry due to an increase in automobiles in the United States. Improvements in drilling methods and refinery practices are presented. This report includes a table.

The following report covers the study of electrical properties of the Morrison formation in the Uravan mineral belt of the Colorado Plateau to determine if there are anomalous variations in these properties in and near zones of uranium-vanadium minerals which might serve as a target for geophysical prospecting.

Report issued by the U.S. Bureau of Mines discussing metal mines in Colorado. As stated in the summary, "this paper describes the mineral deposits and discusses mining and milling methods and related operating conditions in an important gold, silver, lead, and zinc producing area in Ouray, San Juan, and San Miguel Counties, Colo., embracing 250 square miles" (p. 5). This report includes tables, maps, and illustrations.