Stillwater County Chamber of Commerce P.O. Box 783 Columbus, MT 59019 USA Phone: (406) 322-4505  Official Website Located in south central Montana, Stillwater County consists of 1,793 square miles with geographic features that range from the Beartooth Absaroka Wilderness Area at the southern end of the county, to the Stillwater and Yellowstone River Valleys in the central section, to the lake basins, coulees and rolling plains at the northern end. Stillwater County has it all!

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