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Tongue River Reservoir

State Park on Tongue River Reservoir

Region 7 | Custer Country

Tongue River Reservoir State Park - Camping at Tongue River Reservoir State Park.

Tongue River Reservoir State Park - Personal water craft at Tongue River Reservoir State Park.

Tongue River Reservoir State Park - Camping at Tongue River Reservoir.

Tongue River Reservoir State Park - View of Tongue River Reservoir and camping at Tongue River Reservoir State Park.

Joe Hagengruber of Helena catches crappie - Joe Hagengruber of Helena boating in June, 2004 on Tongue River Reservoir was successful catching black crappie.

Tongue River Reservoir - Enjoying the day at Tongue River Reservoir State Park.

Tongue River Reservoir State Park - Tongue River Reservoir State Park.

Tongue River Reservoir - Tongue River Reservoir at full pool in June 2003, looking southwest from the Tongue River Dam

Tongue River Reservoir State Park - At full pool in late June 2003, upstream from the Tongue River Dam looking southwest

Park Map

Location Map

Parcel Map


Open:	Jan 1 - Dec 31
Size:	642 acres
Elevation:	3468 ft
Nearest Town:	Sheridan, WY

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.

Tongue River Reservoir has 154 campsites including 40 paved sites with electrical hookups, a fish cleaning station and an RV dump station.

A small store and marina is open 6 days per week from May through September.

Check out the current weather conditions in Decker.

Fees

Tongue River Reservoir State Park is located on Tongue River Reservoir .

Directions

6 miles north of Decker on Secondary 314, then 1 mile east on county road.
(Lat 45.1, Lng -106.795)

Contact Information

If you have questions or comments please send mail to: Tongue River Reservoir, PO Box 8, Decker, MT 59025 or call (406) 757-2298 .

Restrictions & Closures

Pet Restriction: Leash required.

Stay Limit: Maximum stay of 14 days allowed.

Vehicle Length: Trailer Length is 35 ft.

Activities

Boating
Fishing
Swimming
Camping
Picnicking
Bicycling
Wildlife Viewing
Water Skiing
Hunting - Shotgun
Boating - non-motorized
Photography

Boat Services

Dock
Marina
Ramp (Concrete)

Campground

Campground
Group Site
Tent/RV Site

Miscellaneous

Boat Trailer Parking
Extra Vehicle Parking
Firewood - Available at Marina.
Fish Cleaning Station
Food Concession
Groceries
Information Kiosk/Map

Picnic Site

Fire Ring
Grill (Ring)
Picnic Table
Sheltered

RV/Trailer

Concrete Pad
Dump Station
Hookup (Electric - 50 Amp)
Hookup (Electric)

Sanitation/Water

Drinking Water - Open from 05/15 to 10/01.
Drinking Water
Garbage Bins
Toilet (Vault)
Toilet (Vault)
Water (Pressurized) - Open from 05/15 to 10/01.

Wildlife Viewing

These locations represent physical occurrences (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.