Tongue River Reservoir State Park
- Status
- Status not posted
- Entrance fee
- $8 per dayAnnual pass available
- Day-use reservations
- None mentioned
- Dogs
- Statewide rule — see below
- Camping
- Yes
- Official site
- fwp.mt.gov(406) 757-2298
Official page last checked Oct 29, 2026. How we keep this current
Overview
In Big Horn County, about 23 miles north of Sheridan, Tongue River Reservoir State Park covers about 576 acres.
Things to do include surfing, ice fishing, winter sports, canoeing and kayaking, and boating. On the water side, there is a boat ramp and boat or kayak rentals. Overnight options include campsites, with RV sites and tent sites.
Hours
Park, gate, office and facility hours are listed separately because they often differ. Alerts above override normal hours.
| Facility | Days | Hours | Season |
|---|---|---|---|
| Campground | Open daily (hours not posted) | ||
Official wording
Open daily all year
Open year round Electricity available at Camper's Point and Pee Wee South Campgrounds - availability reduced during off season. Only 11 sites have electricity from approximately October 1st to May 1st depending on weather. Group areas & playground are open
Water & Fish Cleaning Stations: Available approximately early-May through Sept. 30th depending on weather
Source: official park page, checked Oct 29, 2026. Times are local to the park (America/Denver).
Fees and passes
| Item | Amount |
|---|---|
| Montana residents who pay the (resident) | $9 · year |
| Day use entrance fee with a vehicle | $8 |
| Day use entrance fee as a walk-in, bicycle or bus passenger | $4 |
| With a Nonresident Entrance Pass (nonresident) | Free |
| Campsite fees range from | $4 · night |
| Campsite fees range from | $34 · night |
Official wording
Montana Residents • Montana residents who pay the $9 state parks fee with their annual vehicle registration have no daily entrance fees to state parks. For residents who don't include this in their vehicle registration, non-resident day use fees apply. Nonresidents • Day use entrance fee with a vehicle: $8 • Day use entrance fee as a walk-in, bicycle or bus passenger: $4 • With a Nonresident Entrance Pass: Free Campsites • Campsite fees range from $4-$34 per night, depending on season and available amenities. Montana State Parks offers hike/bike, rustic, tent, rv, and boatslip campsites. Visit Reserve America to check fees and reserve a campsite for Tounge River Reservoir State Park.
Montana park passes
- State parks fee with Montana vehicle registration — $9 per vehicle per year (residents). No daily entrance fees to state parks for that vehicle Details
- Nonresident Entrance Pass (12-month) — $50 per vehicle. Free entrance and discounted camping ($10-$12/night) for one year from month of issue Details
- 7-Day Nonresident Entrance Pass — $35. Entrance for 7 consecutive days and discounted camping; sold at parks only Details
From the Montana state guide. Confirm which passes this park accepts.
Reservations
- Day use
- No day-use reservation requirement mentioned
- Booking system
- ReserveAmerica (montanastateparks.reserveamerica.com)
- Phone
- 1-855-922-6768
We link to the official booking system rather than showing live availability, which changes minute to minute.
Pets
See the park’s wording
Pets Allowed (amenity list)
Service animals are generally permitted where pets are not. Check with the park for specific areas.
Camping
Fishing, boating, swimming, and camping are the prime activities here, and the reservoir boasts excellent crappie, walleye, bass and northern pike fishing. The park offers a total of 164 campsites with 95 of those campsites being reservable. There are 81 reservable sites with electric hookups, with 27 of those with electric being double occupancy campsites (two electric hook-ups). There are 83 non-electric campsites with 14 being reservable and 69 first-come, first serve ('walk-in' or non-reservable) campsites. The park also has a fish cleaning station and 23 vault toilets throughout the campgrounds. Reservations for camping are available peak season which is defined as the third Friday of May until and the third Sunday of September. Eleven campsites on Campers Point have electricity year-round.
From the official park page, checked Oct 29, 2026. Site counts and prices can change; confirm when booking.
Things to do
Wildlife viewing and birdingCampingCanoeing and kayakingFishingIce fishingWinter sportsBoatingPicnickingSwimmingSurfing
Amenities
Facilities
- Restrooms
- Picnic areas
- Picnic shelters
- Playground
- Park or camp store
- Parking
Water
- Boat ramp
- Boat, canoe or kayak rentals
Camping
- RV dump station
- Tent camping
- RV camping
✓ listed by the park · ✕ the park says it is not available. Anything not shown here isn’t mentioned by the official source — that means unknown, not unavailable.
Accessibility
Amenities: ADA Accessible
Conditions change. Contact the park to confirm specific accessible features before your visit.
Getting there
- Address
- 292 Campers Point
Decker, MT 59025 - Nearest town
- Sheridan — about 23 mi north (straight line)
- Coordinates
- 45.0998, -106.7945
- Phone
- (406) 757-2298
- raymond.schell@mt.gov
Nearby state parks
Sources and freshness
- Montana State Parks — park page — last checked Oct 29, 2026
- Montana State Parks Find a Park list, joined with FWP 'State Park Locations' ArcGIS layer
- Wikidata
- USGS PAD-US 4.1 (boundary and acreage)
“Last checked” is when our system last read the official source. No change has been detected since this page was first published. Hours, fees and rules can change without notice — confirm with the park before you go. Methodology