Appendix containing single-record and averaged-record data listings to accompany a report on aerial radiometric and magnetic reconnaissance of the Ritzville 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.

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.

Base Visit Trip Report - Great Falls International Airport Air Guard Station

Community Correspondence - Letter from R.E. Thalman regarding the plan to disband the 120th Fighter Wing at Montana Air Nation Guard

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.

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.

Executive Correspondence – Letter dtd 07/11/05 to Commissioner Hansen from Representative Denny Rehberg (MT) requesting a meeting in his Capitol Hill office to discuss the Montana ANG Station and Malstrom AFB.

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.

A report about the Lemhi Pass area in the Beaverhead Mountains, Lemhi County, Idaho, and Beaverhead County, Montana, which was undertaken to determine the area as a potential source of thorium.

Technical report issued by the Bureau of Mines over the different uses of gypsum. The sources and uses of gypsum are presented and discussed. This report includes tables, photographs, and illustrations.

"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)

Community Correspondence - Letter from a concerned citizen in response to the recommendation regarding Leased Space MO

Community Correspondence - Letter from Darold L. Bennett in response to the recommendation regarding Great Falls International Airport Air Guard Station

Community Correspondence - Letter from Sara Kennedy to the Commission in support of saving her community

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.

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)."

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.

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.