This report presents the results of a uranium hydrogeochemical and stream sediment study made in the fall of 1976 of Boulder Batholith, Montana.

from Summary: This report describes work done in Hamilton, Montanan/Idaho, National Topographic Map Series (NTMS) quadrangle (1:250 000 scale) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).

"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.

This report contains data from a survey taken between August 11 and August 27, 1978 on the high sensitivity airborne gamma-ray spectrometer and magnetometer over the Ashton quadrangle in Idaho, Montana, and Wyoming.

This report documents the airborne gamma-ray spectrometer and magnetometer survey over the Du Bois quadrangle in Idaho, Montana, the study takes place between August 29 and September 21, 1978.

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

Averaged record data listings taken during aerial gamma-ray and magnetic surveys of the Ashton quadrangle in Idaho, Montana, and Wyoming.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Ashton quadrangle in Idaho, Montana, and Wyoming.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the DuBois Quadrangle in Idaho and Montana.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the DuBois Quadrangle in Idaho and Montana.

"This report presents engineering details, statistics, individual borehole histories and geophysical logs of the seven holes drilled in the Missoula/Bitterroot Drilling Program." (from Introduction)

Geophysical drilling logs for hole MB-2 that was drilled in the Missoula/Bitterroot basins of Montana.

Appendix containing geophysical data recorded from hole MB-4 that was drilled in the Missoula/Bitterroot Basin area in Montana.

Part of an appendix containing geophysical drilling logs for the Missoula/Bitterroot basins of Montana. This log documents findings in hole MB-6.

Appendix containing geophysical data recorded from hole MB-8 that was drilled in the Missoula/Bitterroot Basin area in Montana.

Geophysical drilling logs recorded from hole MB-11 in the Missoula/Bitterroot basins area, Montana.

Geophysical drilling logs recorded from hole MB-12 in the Missoula/Bitterroot basins area, Montana.

Drillings logs documented for the Missoula/Bitterroot area in Montana.

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

Appendix containing data on uranium availability in the Ekalaka Quadrangle to accompany a report on U.S. uranium resources in Montana, North Dakota, and South Dakota.