Rattlesnake Campground

Decker, Montana

About

Tongue River Reservoir State Park is a 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. It provides excellent fishing as numerous 'state record' fish have been pulled from its waters. 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). Each electric site has 50 amp, 30 amp, and 120 volt outlets. There are 83 non-electric campsites with 14 being reservable and 69 first-come, first serve ('walk-in' or non-reservable) campsites. Almost all sites have a fire ring and a picnic table. A dump station and water faucets are available during peak season, as weather permits. The park also has a fish cleaning station and 23 vault toilets throughout the campgrounds. There are 2 boat ramps with docks for launching boats, one at Campers Point by the marina and one at Pee Wee North. The park is 642 acres in size at an elevation of 3,468 feet.

Amenities

Available Site Types

• Full Hookup RV Sites
• Partial Hookup RV Sites
• Tent Sites
• Primitive Tent Sites
• Group Sites
• Seasonal Sites
• Monthly Sites
• Waterfront Sites

Local Attractions

• Rosebud Battlefield State Park
• Little Big Horn Battlefield National Monument
• Sheridan, Wyoming