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U.S. Department of Energy
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Selected data from thermal-spring areas, southwestern Montana

Technical Report ·
DOI:https://doi.org/10.2172/5793650· OSTI ID:5793650
During 1975 to 1977 the Montana district of the US Geological Survey collected and assembled data describing the flow, temperature, and chemical characteristics of thermal and related waters. The work was part of an assessment of the geothermal resources of southwestern Montana, excluding Yellowstone Park. Representative data are presented here from 24 thermal springs and 3 deep wells where water temperatures exceed 38/sup 0/C (100/sup 0/F). Initially, the data base included references reported by Waring (1965). The data base also included unpublished chemical analyses of water samples and related data collected during 1959 to 1973 by the Montana State Board of Health (now Montana Department of Health and Environmental Sciences), the Montana Bureau of Mines and Geology, and by graduate students for theses. Results of analyses and engineering reports were collected from landowners, and additional published and unpublished data were collected by Geological Survey investigators during 1967 to 1975. Tabulation of the data revealed wide discrepancies in reported parameters for some sites. Inadequate description of the sampling sites limited the value of much of the previously reported data, because most of the thermal springs were characterized by multiple outlets. Field measurements of rate, specific conductance, pH, and temperature of flow at the various outlets, particularly those having the highest temperatures, were compared with previously reported determinations.
Research Organization:
Geological Survey, Helena, MT (USA)
OSTI ID:
5793650
Report Number(s):
USGS-OFR-78-438; ON: DE84900055
Country of Publication:
United States
Language:
English