"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)

Color photographs of representative thin sections of cutting samples and cores examined for the Missoula/Bitterroot Drilling Project using a petrographic microscope in order to identify major mineral constituents

A report discussing a drilling project with the objective of obtaining information to assess the favorability of the Tertiary sedimentary units in the Missoula and Bitterroot Valleys for uranium potential.

Graphs showing the frequency distribution and probability of uranium deposits for mineralized environments in the Dillon, Butte, Hamilton, and Elk City 1º x 2º NTMS Quadrangles.

Handwritten logs compiled by the Bendix Field Engineering Corporation containing lithologic descriptions of cuttings made for uranium drilling explorations in the Missoula and Bitterroot Valleys. The logs are organized by the type of sedimentary rock and depth of the sample.

Geophysical drilling logs produced by the Bendix Field Engineering Corporation for uranium drilling explorations in the Missoula and Bitterroot Valleys. "Most of the drill holes were geophysically logged from total depth to surface by Goodwell, Inc., logging units. The logs obtained included the following: Gamma-ray, spontaneous potential (SP), resistivity, neutron, caliper, and density. In-house BFEC units also logged several holes, obtaining potassium/uranium/thorium (KUT) logs from MB-2, MB-6, MB-8 and MB-12." from page 7 of report

GEOTHERM sample file contains 225 records for Montana. Three computer-generated indexes are found in appendices A, B, and C of this report. The indexes give one line summaries of each GEOTHERM record describing the chemistry of geothermal springs and wells in the sample file for Montana. Each index is sorted by different variables to assist the user in locating geothermal records describing specific sites. Appendix A is sorted by the county name and the name of the source. Also given are latitude, longitude (both use decimal minutes), township, range, section, GEOTHERM record identifier, and temperature (/sup 0/C). Appendix B is sorted by county, township, range, and section. Also given are name of source, GEOTHERM record identifier, and temperature (/sup 0/C). Appendix C is first sorted into one-degree blocks by latitude, and longitude, and then by name of source. Adjacent one-degree blocks which are published as a 1:250,000 map are combined under the appropriate map name. Also given are GEOTHERM record identifier, and temperature (/sup 0/C). A bibliography is given in Appendix D.

Report regarding the collection of sediment samples taken from 1,586 areas around the Bozeman Quadrangle in Montana. This supplemental report covers the results of analyses for forty two elements and descriptions of the area studied. Field data and analytical results of the samples are presented in the appendices, which begin on page 5.

This report follows the evaluation of uranium resources in the Ekalaka 1°x 2° Quadrangle, Montana and North and South Dakota to a depth of 1,500 m (5,000 ft) using available subsurface geologic information.

The following plates depict the geology of the Ekala quadrangle in Montana, North and South Dakota.

Report documenting the results of chemical analysis for 1580 water and 1720 sediment samples in the Elk City quadrangle, Idaho/Montana. It includes an overview of the area, methods, data analysis, and evaluation.

Report documenting the results of chemical analysis for 1370 water and 1951 sediment samples in the Butte quadrangle, Montana. It includes an overview of the area, methods, data analysis, and evaluation.

From introduction: The overall purpose of this study were twofold: (1) To determine where greatest yielding wells at shallowest depths would produce water of suitable quality for municipal and industrial supplies; and (2) to determine regional effects of additional water development on the hydrologic system.

From purpose and scope: The purpose of this study was to describe existing hydrologic systems, to obtain data on the water quality in the area, and to assess potential impacts of surface coal mining on local water resources.

From abstract: The Snider Creek area of the Rosebud and Ashland coal fiends contains strippable reserves of Federal coal that have been identified for potential lease sale. A hydrologic study has been conducted in the potential lease area to describe the existing hydrologic systems and to assess potential impacts of surface coal mining on local water resources.

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."

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.

Discussing chemical analyses

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.

Discussing uranium occurrences in the Lewistown Quadrangle

Discussing occurrences of uranium in the Lewistown Quadrangle

Discussing the tables of electric logs and gamma logs examined in the Lewistown Quadrangle

Discussing statistical analyses of the Lewiston Quadrangle

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."