"This report presents engineering details, statistics, individual borehole histories and geophysical logs of the seven holes drilled in the Missoula/Bitterroot Drilling Program." (from Introduction)

This report explains the development of data enhancement and display techniques for geochemical data in the Hydrochemical and Stream Sediment Reconnaissance (HSSR) surveys taken in the Winston-Salem quadrangle in North Carolina, Virginia, and Tennessee.

Final report documenting a survey of the Durango quadrangle in Colorado as part of the Platoro Caldera detail survey. This volume outlines survey and analysis methods, and summarizes results.

From objective and plan: The airborne data gathered were reduced using ground-based computer facilities to give the basic uranium, thorium and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity, correlated as a function of geologic units indicated from available geologic maps. Results of analyses of these field data are presented as profile plots of the gamma radiation and earth's magnetic field.

The airborne data gathered were reduced using ground-based computer facilities to give the basic uranium, thorium and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity, correlated as a function of geologic units indicated from available geologic maps. Results of analyses of these field data are presented as profile plots of the gamma radiation and earth's magnetic field.

From Operations: For the Flagstaff quadrangle, a total of 1930 line miles, excluding reflights and overlaps and missing data were flown by the Tracker and 1348 line miles were flown by the helicopter. The production summary presented below and the detailed daily production in Appendix B describes half of the total project. The Raton Basin Project, of which this quadrangle is a part, covered five other 10 x 2 quadrangles which was or will be covered in separate reports.

Rock and stream-sediment samples were collected to define areas favorable for uranium deposits northeast of Gunnison, Colorado. Areas considered most favorable for further exploration are: (1) the Bronco Mountain area, approximately 10 mi south of Taylor Park Reservoir, (2) the area near the Big Red mine, and (3) the area 5 mi north-northeast of Taylor Park Reservoir. On the basis of known deposits in the Marshall Pass and Cochetopa districts, fault contacts between Precambrian granites and Paleozoic or Mesozoic sedimentary rocks are favorable structural sites.

The following report describes the study of sediment in South Park, Colorado, the study taking 464 water samples to test for uranium in the Rocky Mountains.

This report follows the hydrogeochemical and stream-sediment study in the Smoke Creek Desert Basin in Nevada that was conducted by the Lawrence Livermore Laboratory. This report contains only the analytical data and sample locations.

This report follows a hydrogeochemical and stream-sediment study taken in the Roach Lake Basin by the Lawrence Livermore Laboratory. This report contains only the analytical data and sample locations.

Final report documenting a high-sensitivity airborne gamma radiation and magnetic field survey of the Brownsville and McAllen National Topographic Map segments including a description of the program and results.

From abstract: During July-August 1976, water and sediments were collected for the Los Alamos Scientific Laboratory from streams and lakes over an area of -100 000 km2 around Kotzebue, Alaska. The sampling was by helicopter, as part of the NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) sponsored by the US ERDA. It was done according to rigorous, but simple, written procedures, at a nominal density of one location per 23 km 2, and included the 1400- to 1900-km2 area proposed for the Cape Krusenstern National Monument. All the samples would normally have been analyzed for uranium and presented in a regular HSSR report. However, due to an interest in the proposed Monument area, the Anchorage office of the Department of Interior, Bureau of Mines, provided funds for multielement analyses on the sediments taken from there. Consequently, in addition to the routine field data and uranium determinations for waters and/or sediments from 89 locations sampled over the proposed Cape Krusenstern Monument, the results of analyses of 44 additional elements in 77 of the sediments from there are provided. Sample locations are shown on a 1:250 000-scale plate. The data and descriptions of the methods used are in appendices.

This report is the first volume of a two-part set documenting the results of the analyses of the airborne gamma radiation and total magnetic field survey that was flown for the Austin National Topographic Map NH14-6.

Final report documenting a high-sensitivity airborne radiometric and magnetic survey of the Okanogan and Sandpoint quadrangles including the survey description, specifications, data processing methods, interpretation methods, and regional geologic review.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Casper quadrangle including results of data interpretation, significance factor profile maps, stacked profiles, and histograms.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Sandpoint quadrangle including maps documenting geophysical and geochemical data, as well as magnetic, ancillary and radiometric data.

This report documents a complete summary on the high sensitity airborne gamma-ray spectrometer and magnetometer survey over the Durango quadrangle.

From summary: This report contains data collected during a geochemical survey for uranium in the Billings National Topographic Map Series (NTMS) quadrangle of south-central Montana (Fig. 1) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).

From abstract: Results of a reconnaissance geochemical survey of the Lubbock Quadrangle, Texas are reported. Field and laboratory data are presented for 994 groundwater and 602 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the survey area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed.

From introduction: Geodata International, Incorporated, conducted an airborne gamma ray and total magnetic field survey which covered a region of North Texas, New Mexico and Oklahoma. The specific area of this report as outlined on Figure 1 was surveyed from an aircraft using large-volume radiation detectors with computer-controlled airborne equipment. Each map line was flown in an east-west direction with an average length of 120 miles and each tie line was flown in a north-south direction with an average length of 69 miles. Map lines and tie lines were surveyed spaced at intervals indicated on Figure 2. The data for the total area of Figure 1 were gathered between March-July, 1976.

From introduction: Geodata International, Incorporated, conducted an airborne gamma ray and total magnetic field survey which covered a region of North Texas, New Mexico and Oklahoma. The specific area of this report as outlined on Figure 1 was surveyed from an aircraft using large-volume radiation detectors with computer controlled airborne equipment. Each map line was flown in an east-west direction with an average length of 120 miles and each tie line was flown in a north-south direction with an average length of 69 miles. Map lines and tie lines were surveyed spaced at intervals indicated on Figure 2. The data for the total area of Figure 1 were gathered between March-July, 1976.

This report follows the hydrogeochemical and stream-sediment study in the Cave Valley Basin, Nevada, conducted by the Lawrence Livermore Laboratory. This report contains only the analytical data and sample locations.

This report presents the results of a surface investigation and favorability study of low-grade uranium deposits in the Coso Formation in Owens Valley, California that were explored between 1954 and 1956.

This report follows the hydrogeochemical and stream-sediment study in the Winnemucca Dry Lake Basin in Nevada that was conducted by the Lawrence Livermore Laboratory. This report contains only the analytical data and sample locations.