Data gathered at well water sites in the Ekalaka quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity), physical measurements (e.g., temperature, well description, scintillometer readings), and elemental analyses.

Data gathered at stream sediment sites in the Ekalaka quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity) and elemental analyses.

Documentation outlining characteristics of field data samples taken in the Ekalaka quadrangle.

The following report discusses thorium and rare earth resources in the Lemhi Pass thorium area where over 200 samples were collected.

"Field and laboratory data are presented for 397 water samples and 746 sediment samples from the Ekalaka Quadrangle, Montana. Uranium values have been reported by Los Alamos National Laboratory in Report GJBX-55(78). The samples were collected by Los Alamos National Laboratory; laboratory analysis and data reporting were performed by the Uranium Resource Evaluation Project at Oak Ridge, Tennessee." (Abstract)

Discussing uranium occurrences in the Hamilton Quadrangle

Discussing sample locations and analyses

Discussing semiquantitative spectrographic analyses of Idaho Batholith and associated igneous rocks

Discussing sample locations and uranium analyses of Idaho Batholith and associated igneous rocks in the hamilton quadrangle

Discussing occurrences of uranium in the Hamilton Quadrangle

Discussing sample locations and uranium analyses of water samples in the Hamilton Quadrangle

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.

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.

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

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

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.

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.

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.

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 and chemical analyses of rock samples to accompany a report on U.S. uranium resources in the Butte Quadrangle, 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.

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 discussing an investigation of the stratigraphy of the Phosphoria formation in Montana. The investigation took from 1949 to 1950, and this report includes about half of the data collected. Analytical data and abstracts of several locations' stratigraphic sections are included.