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.

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.

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.

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 purpose of this report is to provide estimates of 100-year flood discharges at selected sites in Glacier and Yellowstone National Parks. Estimates for streams with contributing drainage areas outside Glacier National Park were determined using only the contributing drainage area in the park.

Discussing uranium occurrences in the Hamilton Quadrangle

Discussing sample locations and analyses

Discussing semiquantitative spectrographic analyses of Idaho Batholith and associated igneous rocks

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.

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

"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)

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

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

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.

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.