The Tongue River Reservoir State Park was formed when the Tongue River was dammed, resulting in a 12-mile long reservoir that winds through scenic red shale, juniper canyons and open prairies of southeastern Montana. Boating and other water sports are popular here, and the park boasts excellent bass, crappie, walleye, and northern pike fishing. Four state record fish have been pulled from its waters. This is a great spot for fun and relaxation.
The use of metal detectors, digging, collecting or removal of artifacts is restricted. Bikes are allowed on existing roadway. The leash law for pets is in effect from April 1st until the opening day of upland bird season. Visitors should watch for rattlesnakes. The park is undeveloped and is adjacent to the Crow Indian Reservation.Daily entrance fee of $4/vehicle, $1/walk-in and $7/night camping. Camping at 106 sites is limited to 14 days during a 30-day period.