"This report presents engineering details, statistics, individual borehole histories, and geophysical logs of the four holes drilled in the Lemhi Pass, Montana/Idaho area." (from Introduction)

Appendix containing a statistical summary of hyrogeochemical data from ground and surface water samples to accompany a report on U.S. uranium resources in the Ekalaka Quadrangle in Montana, North Dakota, and South Dakota.

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.

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

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

This report presents data maps and tables as a result of geophysical and radioactive mineral studies made in the Jordan quadrangle, Montana.

This report presents data maps and tables as a result of geophysical and radioactive mineral studies made in the Glendive quadrangle, Montana.

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

Appendices containing data on uranium availability in the Billings Quadrangle to accompany a report on U.S. uranium resources in Montana.

Appendices containing supplementary data on uranium availability in the Sheridan Quadrangle, in addition to petrology reports and test well reports to accompany a report on U.S. uranium reports in Wyoming and Montana.

Appendices containing uranium occurrence data for the Kalispell Quadrangle in addition to chemical analyses data to accompany a report on U.S. uranium resources in Montana.

Appendices containing uranium occurrence reports from the White Sulphur Springs Quadrangle in addition to analyses and site location data to accompany a report on U.S. uranium resources in Montana.

Appendices containing data on uranium availability in the Bozeman Quadrangle to accompany a report on U.S. uranium resources in Montana.

Appendices containing data on uranium resources in the Gillette Quadrangle to accompany a report on U.S. uranium resources in Wyoming, South Dakota, and Montana.

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

Appendices containing data on uranium availability and sample analyses to accompany a report on U.S. uranium resources in the Sandpoint Quadrangle, Washington, Idaho, and Montana.

From Purpose and Scope: "The Gillette 1º x 2º Quadrangle, Wyoming, and South Dakota was evaluated to find volumes of rock considered favorable for uranium deposits and which could contain at least at 100 mt tons U3O8 with an average grade of 0.01 percent U3O8 or more. All geologic environments to a depth of 1,500 m (5,000 ft) evaluated through the use of surface investigations and subsurface information."

From Introduction: "The Butte Quadrangle, Montana (Fig. 1), was evaluated to identify geologic environments and delineate areas that exhibit characteristics favorable for the occurrence of uranium deposits. Each environment was categorized as favorable, unfavorable, or evaluated according to criteria established in Mickle and Mathews (eds., 1978)."

From Introduction: "The Elk City Quadrangle (1º by 2º), Idaho and Montana, was evaluated to identify and delineate geologic environments that exhibit characteristics favorable for the occurrence of uranium deposits."

From Introduction: "The Sheridan NTMS 1º by 2º Quadrangle (Fig. 1) in north-central Wyoming was evaluated to identify geologic environments that have characteristics favorable for uranium deposition. Only environments to a depth of 1500 m have been evaluated for this project."

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 Purpose and Scope: "The Billings Quadrangle (2º), Montana and Wyoming, was evaluated to identify geologic units and to delineate areas that exhibit characteristics favorable for uranium deposits that could contain at least 100 tons U3O8 in rocks with an average grade of not less than 100 ppm U3O8. Surface and subsurface data were used to evaluate all geologic environments to a depth of 1500 m (5,000 ft)."

From Introduction: "The Bozeman Quadrangle is south-central Montana was evaluated for geologic environments capable of containing uranium deposits to a depth of 1500 m (5,000 ft.). Most rock types and geographic areas were investigated by surface traverse, and hydrgeochemical data were collected from available well sites."

From Introduction: "The Kalispell Quadrangle, in northwestern Montana (Fig. 1), was evaluated to identify geologic environments and delineate areas that exhibit characteristics favorable for uranium deposits. Favorable environments, as determined by surface and subsurface investigations, are those that could contain uranium deposits of at least 100 tons U3O8 at an average grade not less than 100 ppm U3O8."