Geothermal Energy Program
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Montana Geothermal Sites: Blue Joint
SUMMARY INFORMATION:
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| Location: N 45.6963 W 114.3633 Nearest town: 30 miles SSW of Darby County: RAVALLI Depth: Spring Temperature: 85 F Flow: 224 gpm TDS: 179 ppm Site ID: MGEOT230 LOCATE AND VIEW VIA NRIS DIGITAL MAPS: Allows access to resizing topos and aerial images. |
CHEMISTRY (ppm, mg/L) Site name: BLUE JOINT Temp: 29º C TDS: 179 pH: 8.22 Sodium: 38 Potassium: 0.3 Calcium: 2.6 Magnesium: 0.1 Iron: N.A. SiO2: 54 Sulfate: 5.0 Chloride: 3.0 Fluoride: 9.5 |
This spring is referenced from the Montana Geothermal Map by Sonderegger and Berantino, 1981.

