Tongue River Reservoir
State Park on Tongue River Reservoir
The 12-mile long reservoir is situated among scenic red shale, juniper canyons, and the open prairies of southeastern Montana. The park is loved by Montana and Wyoming anglers, campers, and boaters. Water sports are popular here and the park boasts excellent fishing as four state record fish have been pulled from its waters. It’s remote, so plan accordingly.
Tongue River Reservoir State Park is located on Tongue River Reservoir. Tongue River Reservoir State Park is the only FWP managed site on Tongue River Reservoir. Tongue River Reservoir is a tributary of the Tongue River.
6 miles north of Decker on Secondary 314, then 1 mile east on county road. (Lat 45.11, Lng -106.78)
If you have questions or comments please send mail to: Tongue River Reservoir, P.O. Box 1630 Miles City, MT 59301 or call (406) 234-0900.
These locations represent physical occurences (visually confirmed) within the boundaries of the site. Many more species may be present in the area which are not listed because we do not have a visually confirmed record. If you would like to report a species sighting, a form is available.
