Report discussing the possible existence of pegmatites containing beryllium deposits in the granite stock in the vicinity of Mount Antero and White Mountain, Chaffee County, Colorado.

A preliminary reserve statement, regarding Reserve Blocks B and C, located in the Legin group Area, in San Miguel County, Colorado.

A preliminary reserve statement regarding Reserve Block D, of the Legin Group Area, located in San Miguel County, Colorado.

From introduction: This report summarizes some of the results of U. S. Geological Survey investigations in the Club Mesa area and presents a compilation of available geologic data that would be helpful in future exploration. Detailed geologic logs of U. S. Geological Survey holes drilled in the Club Mesa area on public land that is no longer withdrawn from mineral entry are on open file for public inspection in the U. S. Geological Survey office, Grand Junction, Colorado.

This report provides uranium and other elemental data resulting from the Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Craig quadrangle, Colorado.

A report about how the U. S. Geological Survey explored the Atkinson Mesa area for uranium and vanadium bearing deposits from July 2, 1951, to June 18, 1953, with 397 diamond drill holes that totaled 261,251 feet.

A report regarding exploration for uranium deposits in the Atkinson Mesa area, Montrose County, Colorado. Concerns work done on behalf of the division of Raw Materials of the U.S. Atomic Energy Commission.

Report summarizing the results of geological exploration of the Atkinson Mesa area of Montrose County, Colorado and contains a brief description of the area's geology and ore deposits.

From introduction: The present report summarizes the indicated and inferred reserves which have been found to date by the drilling in Club Mesa, Montrose County of New Mexico, and includes an estimate of the potential reserves predicted for the area. It also includes a statement of plans for additional drilling. A final report will be prepared on the completion of the drilling planned for 1951.

From purpose of study: The Vallecito Conglomerate of the Needle Mountains area in southwestern Colorado was studied to evaluate the uranium potential of the unit and to test the applicability of the uraniferous Precambrian pebble-conglomerate exploration model in this area. The main thrust of this project is the Vallecito Conglomerate, but the Uncompahgre Formation, which is also in the Needle Mountains area has basal conglomerate that was investigated in a reconnaissance mode. Five specific objectives have been formulated to meet the overall purpose of this project, and these include: a) Determine the uranium distribution in the Vallecito Conglomerate and the basal conglomerate of the Uncompahgre Formation. b) Evaluate the uranium resources of the area to the degree possible utilizing available information and personal field investigations. c) Test the validity of application of the Precambrian quartz-pebble conglomerate model to this area. d) Recommend detailed studies and delineate drilling sites in the area to further evaluate the uranium resources if warranted. e) Recommend additional geologic, geophysical and geochemical studies which would bear directly on evaluation of uranium resources of the Precambrian pebble conglomerates in the Needle Mountains area.

Report discussing the regional geology, geomorphology, structure, mineral deposits, and details of the sedimentary and igneous rocks of the Placerville Quadrangle in Colorado.

A report regarding the areal geology of the Placerville Quadrangle, located in colorado. This report concerns work done on behalf of the division of Raw Materials of the U.S. Atomic Energy Commission.

Discussing radioactive titaniferous heavy mineral placers in the San Juan Basin in New Mexico and Colorado.

The following slides document black sand deposits that were analyzed in the parent report, Radioactive Titaniferous Heavy Mineral Placers in the San Juan Basin, New Mexico and Colorado.

This report examines the region of the Piceance Creek basin in Colorado so that the United States Bureau of Mines may develop plans for an underground oil-shale research facility in the center of the basin. It includes maps, charts, and graphs.

The following report is the second volume discussing the detailed aerial gamma ray and magnetic survey results taken for the Montrose quadrangle. This report focuses on Area 1, a detail area in Colorado, and provides a detailed geologic summary, interpretation report, six gamma ray and one magnetic contour maps. geochemical analysis map, interpretation map, flight line map, individual corrected profiles, survey area histograms and statistical tables.

The following report is the second volume discussing the detailed aerial gamma ray and magnetic survey results taken for the Montrose quadrangle. This report focuses on Area 4, a detail area in Colorado, and provides a detailed geologic summary, interpretation report, six gamma ray and one magnetic contour maps. geochemical analysis map, interpretation map, flight line map, individual corrected profiles, survey area histograms and statistical tables.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Montrose Detail Area #1 in Colorado.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Montrose Detail Area #1 in Colorado.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Montrose Detail Area #4 in Colorado.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Montrose Detail Area #4 in Colorado.

The following report covers a reconnaissance resource appraisal in pre-Morrison formations, particularly the Shinarump conglomerate, on the Colorado Plateu and adjoining regions during December of 1951. This report is preliminary in nature and the ideas are presented as a hypothesis to be tested by future work.

A report about uranium in Colorado which oxidize to yield U(VI) before reacting significantly with other mineral constituents.

A report regarding factual data obtained during an examination of the copper King Shaft, Black Hawk Claim no. 1, Larimer County, Colorado. This report is designed to provide the owners with the factual data obtained from their property in accordance with the Agreement for Mineral Exploration with them.