Montana State Parks :: Tongue River Reservoir

Tongue River Reservoir

STATE PARK

Enjoy this 12-mile long reservoir 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. Excellent fishing as two "state record" fish have been pulled from its waters.

Water system has been shut down for the season. This effects all potable water hydrants, fish cleaning station and the RV dump station.

HOURS & LOCATION

SEASON AND HOURS
Park
Open daily all year
4/1 - 9/30: Water and fish cleaning station available (weather dependent)

Marina/Concessionaire
Open 4/1 through 9/30
7 am - 9 pm daily

LOCATION
290 Campers Point
Decker, MT 59025
Latitude/Longitude: (45.09975 / -106.79453)

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MEET THE PARK MANAGER
Photo of Bob Peterson, Tongue River Reservoir State Park Manager

Bob Peterson currently manages Tongue River Reservoir and Rosebud Battlefield State Parks. He went to work for Montana Fish, Wildlife, & Parks in 2000. Bob grew up in Cheyenne, WY, earned his degree from the University of Wyoming, and worked seasonally for the Wyoming Game and Fish Department. Bob retired from the Wyoming Game and Fish Department after 27 years of service as a Game Warden. He was born in Great Falls, Montana at Mallstrom Air Force Base. When he’s not wearing his park manager hat, Bob enjoys fly fishing, silversmithing, and WWII warbirds.

CONTACT

CONTACT INFO
Mailing Address:
Tongue River Reservoir State Park
c/o FWP Region 7 Headquarters
PO Box 1630
Miles City, MT 59301

Phone: 406-234-0900
Email: bpeterson4@mt.gov

Tongue River Reservoir

STATE PARK

Large bodies of water such as this are rare in prairie country, and Tongue River Reservoir State Park is a popular place in southeastern Montana to enjoy water-based recreation activities.

Boating and other water sports are favored here and the park boasts excellent bass, crappie, walleye and northern pike fishing.

This state park offers more than 150 campsites, including 40 paved campsites with electrical hookups. 73 campsites are reservable through the online reservation program while 83 campsites are held back for spontaneous, first-come, first-served campers.

The park is 642 acres in size at an elevation of 3,468 feet.

The site also has a fish cleaning station and LP gas refill.

Activities Available