A high sensitivity airborne radiometric and magnetic survey of the Rice Like, Iron Mountain, Eau Claire and Green Bay 1:250,000 NMTS Quadrangles within the states of Wisconsin, Michigan, and Minnesota. A total of 10,340 line miles of high sensitivity radiometric and magnetic data were collected within these quadrangles. Traverse lines were flown at a spacing of 3.125 miles in an east/west direction at a 18.375 miles seperation. All data were collected utilizing a fixed wing aircraft and over 3,500 cubic inches of Nal crystal detector. Magnetometer data were collected utilizing a high sensitivity proton magnetometer. Data were recorded digitally at 1.0 second intervals aboard the aircraft. Navigation was performed using both visual and doppler techniques. All data presented in this report as corrected profiles of all radiometric variables, magnetic data, radar and barometric altimeter data, air temperature and airborne bismuth contributions. Radiometric data presented are corrected for Comptron Scatter, altitude dependence and atmospheric Bismuth. These data are also presented on microfiche, and digital magnetic tapes. In addition, anomaly maps and inerpretation maps are presented in relating known geology or soil distribution to the corrected radiometric magnetic data.

Final report analyzing aerial gamma ray and magnetic data in the Fairmont quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Sioux Falls quadrangle in South Dakota, Iowa, and Minnesota, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.

A report regarding airborne gamma-ray spectrometer and magnetometer survey of the Kenora Quadrangle, Minnesota.

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Roseau Quadrangle, Minnesota

A report regarding an airborne gamma-ray spectrometer and magnetometer survey for the Duluth Quadrangle, Minnesota.

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Bemidji Quadrangle, Minnesota

The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Quetico quadrangle, Minnesota.

The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Hibbing quadrangle, Minnesota.

The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the International Falls quadrangle, Minnesota.

From Introduction: "The St. Cloud NTMS Quadrangle, Minnesota, was evaluated to identify and delineate areas and geologic units that have characteristics favorable for the occurrence of uranium deposits."

From Introduction: "The New Ulm 1º x 2º Quadrangle, Minnesota, was evaluated to identify and delineate areas and geologic units that have characteristics favorable for the occurrence of uranium deposits."

Purpose and scope: The Eau Claire Quadrangle, Wisconsin and Minnesota, was evaluated to identify geologic units and delineate areas that exhibit characteristics favorable for the occurrence of uranium deposits. All geologic environments to a depth of 1500 m (5,000 ft) were evaluated by means of surface investigations and available subsurface data. Each environment was categorized as favorable, unfavorable, or unevaluated for uranium deposits based on recognition criteria contained in the study of significant uranium districts worldwide (Mickle and Mathews, eds., 1978). Evaluation of the Eau Claire Quadrangle was conducted by Golder Associates, Inc., under subcontract to Bendix Field Engineering Corporation (BFEC), for the National Uranium Resource Evaluation (NURE) program, managed by the Grand Junction Office of the U.S. Department of Energy (DOE). The evaluation program began February 1, 1978, and ended February 1, 1980. Time spent by Golder personnel on literature search, field work, evaluation of data, and preparation of the final report totaled approximately 3.5 man-years.

A report regarding evaluations done of the Ashland Quadrangle to find favorability for uranium occurrences in the quadrangles geologic environments. "No favorable areas could be identified or delineated on the basis of available data, and it is concluded that geologic environments in the Ashland Quadrangle are unfavorable for uranium."

Report discussing lake-bottom sediment sampling; radon soil gas surveying, and chemical analyses for rock, stream-sediment, ground, spring-water, lake-water, and stream-water samples collected for a report discussing the favorability for uranium occurrences in geologic environments of the Ashland quadrangle of Wisconsin, Michigan, and Minnesota.

A report regarding an airborne gamma-ray spectrometer and magnetometer survey in the Saint Paul Quadrangle, Minnesota.

A report regarding an airborne gamma-ray spectrometer and magnetometer survey fo the Stillwater Quadrangle, Minnesota: Final Report

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Two Harbors Quadrangle, Minnesota.

"Results of a reconnaissance geochemical survey of the Thief River Falls Quadrangle, Minnesota and North Dakota, are reported. Statistical data and symbol plots for uranium and uranium-related variables are presented for 471 groundwater and 342 stream sediment samples. Also included is a discussion on geologic factors considered significant in evaluating the potential for uranium mineralization."

"Results of a reconnaissance geochemical survey of the Watertown Quadrangle are reported. Field and laboratory data are presented for 711 groundwater and 603 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. a generalized geologic map of the survey is provided and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed."

Final report analyzing aerial gamma ray and magnetic data in the La Crosse quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

This is the second volume and final report on the airborne high sensitivity gamma-ray spectrometer and magnetometer survey for the Kenora quadrangle, Minnesota. This volume provides data maps and sample charts of the results taken in the survey.

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Roseau quadrangle, Minnesota. This volume contains data maps of the results.

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Duluth quadrangle, Minnesota. This volume contains data maps of the results.