Appendices containing data on uranium availability in the Wells Quadrangle to accompany a report on U.S. uranium resources in Nevada, Idaho, Utah.

This report follows the study to recognize, characterize, and delineate mineralized environments in the Wallace and Choteau quadrangles of Idaho and Montana.

From Purpose and Scope: "The Wells 2º Quadrangle, Nevada, Utah, and Idaho (Fig. 1), was evaluated to identify and delineate areas and geologic environments that exhibit characteristics favorable for the occurrence of uranium deposits. All geologic environments in the quadrangle were evaluated to a depth of 1500 m (5,000 ft) using all available surface and subsurface data."

Appendices containing supplementary analytical data of stream-water and stream-sediment samples, in addition to geochemical analyses of rock samples for the Dillon and Dubois Quadrangles. Also included are detailed uranium-occurrence reports for twelve deposits in the Dillon quadrangle, which include including a description, uranium analysis, exact location, deposit type, and features of the host rock.

From Introduction: "The Baker Quadrangle, in east-central Oregon and west-central Idaho (Fig. 1), was evaluated to identify geologic environments and delineate areas that exhibit characteristics favorable for the occurrence of uranium deposits."

The following data report presents results of ground water and stream sediment reconnaissance in the Challis quadrangle, Idaho, where 1428 sediment samples were collected.

From abstract: All geologic conditions in the Dillon Quadrangle (Montana and Idaho) have been thoroughly examined, and, using National Uranium Resource Evaluation criteria, environments are favorable for uranium deposits along fractured zones of Precambrian Y metasediments, in the McGowan Creek Formation, and in some Tertiary sedimentary basins.

The following data report presents results of ground water and stream/surface sediment reconnaissance in the Pocatello quadrangle, Idaho.

This report presents results of studies made on cenozoic sedimentary rocks in the western Snake River basin of Idaho to determine their favorability for uranium resources.

Results of reconnaissance surveys of the Hamilton quadrangle to determine the likelihood of uranium deposits of the area, and additional information about the location and classification of any deposits.

From Introduction: "The Pocatello 1º x 2º Quadrangle, Idaho (Fig. 1), was evaluated to identify geologic environments and to delineate areas that exhibit characteristics favorable for the occurrence of uranium deposits. Geologic environments were evaluated primarily on the basis of surface investigations, because only limited subsurface data were available."

From Purpose and Scope: "The Dubois Quadrangle, Idaho and Montana (Fig. 1), was studied to identify geologic environments and delineate areas favorable for uranium deposits. These reports summarized field observations and contained preliminary evaluations of geologic environments for uranium deposition. The identification of environments favorable for uranium deposition involved collection and interpretation of radiometric, geochemical, and geologic data."

From Introduction: "The Sandpoint Quadrangle (Fig. 1) was evaluated to define areas with geologic environments favorable for uranium deposits. Environments were evaluated on the basis of surface investigations because few subsurface data were available."

From Introduction: "The Spokane Quadrangle, located in parts of Washington, Idaho, and Montana between lat 47º and 48º N. and long 116º and 118º W. (Fig. 1), was evaluated to identify and delineate areas and geologic units that exhibit characteristics favorable for the occurrence of uranium deposits."

Uranium deposits in the precambrian quartz-pebble deposits of the Raft River area in northwestern Utah and southcentral Idaho are examined. A total of 1214 geochemical samples were acquired for the study, particularly 334 water samples, 616 stream sediment samples, and 264 rocks.

From Abstract: "The Ashton Quadrangle, Idaho, Montana, and Wyoming, was evaluated to identify and delineate areas containing environments favorable for uranium deposits, using criteria developed for the National Uranium Resource Evaluation program. Aerial radiometric data were evaluated, and anomalies were examined in the field. Fourteen uranium occurrences were noted in the study area."

From Introduction: "The Challis Quadrangle, in central Idaho between lat 44º and 45º N. and long 114º and 116º W. (Fig. 1), was evaluated to identify geologic environments and delineate areas that exhibit characteristics favorable for the occurrence of uranium deposits."

Final report documenting a high-sensitivity airborne gamma radiation and magnetic field survey of the Baker National Topographic Map segment (NL 11-11 quadrangle) including a description of the program and results.

From Introduction: "The Jordan Valley Quadrangle (Fig. 1), southeastern Oregon and southwestern Idaho, was evaluated to define areas that have geologic environments favorable for uranium deposits."

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.

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 Dillon National Topographic Map NL12-7.

Appendices containing data on uranium availability in the Ashton Quadrangle to accompany a report on U.S. uranium resources in Idaho, Montana, and Wyoming.

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 Challis National Topographic Map NL11-12.

Appendices containing data on uranium availability and chemical analyses to accompany a report on U.S. uranium resources in the Challis Quadrangle, Idaho.