Boulder River is a fly fishing location in Sweet Grass County, Montana.
This destination has an elevation of 4000 feet. Please view the pinpointed location for Boulder River on the Google Map to the right.
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Latest trip report: Boulder River
Report posted on 12/14/2010
Boulder River Fishing Report
Similar to the Gallatin but harder to access this time of year. It is a cold river and the fish are lethargic.