CampgroundHidden gem

Tongue River Reservoir State Park campgrounds

Decker, Montana

164 sites on a 12-mile reservoir in Montana's quiet southeast.

Price
US$4 to US$34 a night, depending on season and amenities
Booking
Best to book
Sites
164

Tongue River Reservoir State Park has 164 campsites, 95 reservable and 69 first-come, on a 12-mile reservoir at about 3,468 feet. It has a marina store, two boat ramps and open all year. It is far from the crowds, near the Wyoming line.

Good to know

  • Only 11 electric sites open in winter
  • Fees US$4 to US$34 a night depending on season
Best time
May to September
Open
Open year-round
Getting there
Paved then gravel county roads from Decker
Vehicles
Campervans fine
Dogs
Dogs on a lead

Facilities

  • Dump station
  • Fire pits
  • Picnic tables
  • Powered sites
  • Toilets
  • Drinking water

Data: Roadtrip. Things change: check opening times, prices and rules before you go.

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