First volume of a final report documenting the results of an airborne radiometric and magnetic survey in a portion of Colorado and Utah, including a description of the survey methods, calibration of the systems, data processing and displays, and interpretation methods.

Second volume of a final report documenting the results of an airborne radiometric and magnetic survey, including data displays and interpretation results for the Cortez quadrangle.

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.

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

Report of uranium findings from a reconnaissance of the Gallup NTMS quadrangle through water, sediment, and water samples collected from streams, springs, and wells.

Partial abstract: "During the summers of 1976, 1977, and 1978, 442 water and 1755 sediment samples were collected from 1801 locations within the 19 400 km2 area of the Moab quadrangle, Utah and Colorado, by private contractors for the Los Alamos Scientific Laboratory. Water samples were collected from streams, springs, and wells; wet and dry sediment samples were collected both from stream channels and from springs. Each water sample was analyzed for 13 elements, including uranium, and each sediment sample was analyzed for 43 elements, including uranium, thorium, and vanadium. All field and analytical data are listed in the appendixes of this report" (p. 1).

"This report is an analysis of the various types of uranium occurrences in the Colorado Front Range and the environments in which they developed." (from Abstract)

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Cortez quadrangle in Colorado and Utah.

From abstract: From parts of the area, water for domestic use obtained from the fractured crystalline-rock aquifer contained excessive concentration of dissolved fluoride, dissolved nitrite plus nitrate, dissolved solids, dissolved iron, dissolved manganese, dissolved zinc, coliform bacteria, gross alpha radiation, and gross beta radiation. Based on water-quality analyses from 26 wells located in small urbanized areas, water from 21 of the wells contained excessive concentrations of one of more constituents.

From abstract: because of the increased demands for water in eastern Colorado, principally in the urbanizing Denver metropolitan area, increased diversions of water from Dillon Reservoir are planned. Estimates of end-of-month storage in Dillon Reservoir, assuming the reservoir was in place and 131,000 acre-feet of water were diverted from the reservoir each year, were reconstructed by mass balance for the 1931-77 water years. Based on the analysis, the annual maximum end-of-month drawdown below the elevation at full storage would have been 171 feet.

This report presents the findings of the analyses made for a fifty-eight mile stretch along the Yampa River in Colorado. It contains maps, graphs, and tables.

The data collected in this report was recorded from a rotary-wing, reconnaissance high sensitivity radiometric and magnetic survey was conducted in the Craig quadrangle in north-west Colorado.

This is the second volume in a series of reports documenting radiometric and magnetic survey results for the Craig quadrangle in northwest Colorado. This volume contains profile plots of the data recorded from the survey.

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

This is the second volume presenting aerial gamma ray and magnetic survey data from the Denver quadrangle. This report contains data profiles, anomaly maps, flight path recovery map, and sample data.

This is the second volume presenting aerial gamma ray and magnetic survey data from the Pueblo quadrangle. This report contains data profiles, anomaly maps, flight path recovery map, and sample data.

Final report documenting a high-sensitivity airborne radiometric and magnetic survey of the Salina, Moab, Montrose, and Leadville 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 Leadville quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.

This report presents the results of analyses of the airborne gamma radiation and total magnetic field survey flown for the Vernal quadrangle.

The following report is a collection of maps documenting results from the airborne gamma-ray spectrometer and magnetometer survey in the Durango Quadrangle.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Moab quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Montrose quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.

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.

From introduction: This report describes work done in the Durango National Topographic Map Series (NTMS) quadrangle, Colorado, by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).