Tongue River Reservoir State Park
Guide

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Introduction

Surrounded by the rolling, open prairie hills, scenic red shale, and juniper canyons of Southeastern Montana, is Tongue River Reservoir State Park, a sweet destination for RV camping trips. Located just north of the Montana-Wyoming state line and six miles north of Decker, Montana, the 642-acre park sitting at an elevation of 3,468 feet is a nature lover’s dream.

Anglers, boaters, and campers love to visit the park for their RV vacation because of the plenty of opportunities for recreational activities available in the park. Large bodies of water such as the 12-mile long Tongue River Reservoir are rare in Montana making 50,000 people visit the park annually to enjoy the recreational opportunities.

Activities to enjoy at Tongue River Reservoir State Park include bird watching, fishing, ice fishing, ice skating, motor boating, photography, picnicking, swimming, water skiing, wildlife viewing, and wind surfing. Besides, the lake in the park is a great place for creating memories.

Tongue River Reservoir State Park has six campgrounds with 156 campsites which are pet-friendly and are available for RVs and tents. Facilities available at the park include fire pits, fire rings, grills, vault toilets, picnic tables, dump stations, parking lot, boat rental, fish cleaning station, groceries, LP gas refill, trash cans, and drinking water.

A marina store in the park offers firewood, ice, fishing and boating supplies, boat rentals, boat and RV storage, bait, groceries, snacks, drinks, gasoline, souvenirs, fishing and hunting licenses.

RV Rentals in Tongue River Reservoir State Park

Transportation in Tongue River Reservoir State Park

Driving

Its location just north of the Montana-Wyoming state line and 6 miles north of Decker, makes Tongue River Reservoir State Park an easy park to access either by RV, trailer or any other motorized vehicle. The various campgrounds and areas in the park are easily accessible too by the local road network within the park. There are no driving restrictions within Tongue River Reservoir State Park.

Parking

There is only one parking lot for RVs and trailers in Tongue River Reservoir State Park, and it is located by the boat ramp in Pee Wee North campground. All boats, trailers, rigs and motorized vehicles are required to fit entirely within the campsite parking-spur provided. Any equipment that does not fit entirely within the campsite parking-spur is to be parked outside the campground, and where no outside parking is available, a second campsite must be purchased.

Public Transport

There are no public transportation facilities available at Tongue River Reservoir State Park.

Campgrounds and parking in Tongue River Reservoir State Park

Campsites in Tongue River Reservoir State Park

Reservations camping

Sheridan / Big Horn Mountains KOA

The Sheridan/Big Horn Mountains KOA has something for everyone. Relax after a day of touring the terrain by taking a dip in the hot tub or spending time around the community fire pit. Take some time to play miniature golf, horseshoes or even basketball. Children love the playground, and there’s even a Kamp K-9 for the pups. Conveniently located between Mount Rushmore and Yellowstone National Park, this campground features mature shade trees and a seasonal swimming pool. At up to 90 feet, pull-through sites can accommodate big rigs. Wi-Fi is available at the campground as well as on-site fishing. Clean restrooms, hot showers and laundry facilities help bring all the comforts of home directly to the campground’s guests.

Hardin KOA

The Hardin KOA is perfectly located when traveling between large attractions such as Yellowstone National Park and Mt. Rushmore. Visit the Little Bighorn Battlefield National Monument, Pompey's Pillar National Monument, or the Bighorn River and witness first-hand key places of our nation’s history. Relax in the cool pool, or soothing sauna, after a long day of walking, or soak in the bubbling hot tub. Cook a meal in the convenient Kamping Kitchen or rent a bike to tour the terrain. Spend the night in your choice of grassy tent campsites, level RV spots with hookups, or comfortable cabins with all the amenities.

Buffalo KOA

Take a day trip to Yellowstone and make your home base Buffalo KOA. The grand Big Horn Mountains are just minutes away, where you can hike, fish, see a wide variety of wildlife, and take in the natural beauty of the area. At the Buffalo KOA, big rigs are welcome, along with toy haulers. Deluxe RV sites with patios, privacy fences and grills, and even a site with a hot tub, are also available. Enjoy the season pool, bike rentals, and Kamping Kitchen. Wi-Fi and cable TV hookups are available, as well as the usual amenities of clean bathrooms and hot showers.

Billings KOA

Stay at the world’s very first KOA and the first KOA Holiday Campground! The award-winning Billings KOA campground, on the banks of the Yellowstone River, features RV sites with gravel parking pads, full hookups, cable, and Wi-Fi. Some sites offer patios, swings, fire pits, and tables with umbrellas. Campground amenities include family restrooms and showers, laundry facilities, a heated pool and hot tub, a Kamping Kitchen, recreational facilities, bike rentals, a well-stocked convenience store, and planned activities. A snack bar on the grounds offers pancake breakfasts, barbecue dinners, ice cream socials, and more.

Sand Point Campground

Sand Point Campground in Tongue River Reservoir State Park features 32 pet-friendly campsites available for RVs and tents. None of the campsites in Sand Point campground is equipped with hookups for RVs. RV length limit at the campground is 80 feet. The campground has access to the waterfront. Open fires are allowed only in established iron fire rings and grills. Quiet hours are enforced from 10:00pm to 7:00am. Fireworks are prohibited.

Riverside Campground

Riverside Campground in Tongue River Reservoir State Park features 14 pet-friendly campsites available for RVs and tents. None of the campsites in Riverside campground is equipped with hookups for RVs. RV length limit at the campground is 50 feet. The campground has access to the waterfront. Open fires are allowed only in established iron fire rings and grills. Quiet hours are enforced from 10:00pm to 7:00am. Fireworks are prohibited.

Rattlesnake Pt. Campground

Rattlesnake Pt. Campground in Tongue River Reservoir State Park features 7 pet-friendly campsites available for RVs and tents. None of the campsites in Rattlesnake Pt. is equipped with hookups for RVs. RV length limit at the campground is 80 feet. The campground has access to the waterfront. Open fires are allowed only in established iron fire rings and grills. Quiet hours are enforced from 10:00pm to 7:00am. Fireworks are prohibited.

Pee Wee South Campground

Pee Wee South Campground in Tongue River Reservoir State Park features 54 pet-friendly campsites available for RVs and tents. Twenty-seven campsites in Pee Wee South campground are double campsites with electricity, 14 campsites are standard campsites equipped with electric RV hookups, while 13 campsites are standard campsites without RV hookups. The 13 campsites are available on first-come, first-served basis. Some of the campsites are ADA accessible. RV length limit at the campground is 146 feet. Restrooms are available at the campground, as well as access to the waterfront. Open fires are allowed only in established iron fire rings and grills. Quiet hours are enforced from 10:00pm to 7:00am. Fireworks are prohibited.

Pee Wee North Campground

Pee Wee North Campground in Tongue River Reservoir State Park features 14 pet-friendly campsites available for RVs and tents. None of the campsites in Pee Wee North is equipped with hookups for RVs. RV length limit at the campground is 79 feet. Restrooms, a boat ramp, and a parking lot are available at the campground, as well as access to the waterfront. Open fires are allowed only in established iron fire rings and grills. Quiet hours are enforced from 10:00pm to 7:00am. Fireworks are prohibited. in Tongue River Reservoir State Park features 14 pet-friendly campsites available for RVs and tents. None of the campsites in Pee Wee North is equipped with hookups for RVs. RV length limit at the campground is 79 feet. Restrooms, a boat ramp, and a parking lot are available at the campground, as well as access to the waterfront. Open fires are allowed only in established iron fire rings and grills. Quiet hours are enforced from 10:00pm to 7:00am. Fireworks are prohibited.

Campers Point (South) Campground

Campers Point (South) Campground in Tongue River Reservoir State Park consists of 32 pet-friendly campsites available for RVs and tents. All the campsites in Campers Point (South) are equipped with electric hookups for RVs. RV length limit at the campground is 65 feet. Restrooms and a dump station are available at the campground, as well as access to the waterfront. Open fires are allowed only in established iron fire rings and grills. Quiet hours are enforced from 10:00pm to 7:00am. Fireworks are prohibited.

Campers Point (North) Campground

Campers Point (North) Campground in Tongue River Reservoir State Park features eight pet-friendly campsites available for RVs and tents. All the campsites in Campers Point (North) are equipped with electric hookups for RVs. RV length limit at the campground is 65 feet. Restrooms and a boat ramp are available at the campground, as well as access to the waterfront. Open fires are allowed only in established iron fire rings and grills. Quiet hours are enforced from 10:00pm to 7:00am. Fireworks are prohibited.

First-come first-served

Alternate camping

Seasonal activities in Tongue River Reservoir State Park

In-Season

Picnicking

The waterfront and scenic view that Tongue River Reservoir offers campers and visitors at the park, especially during picnics and outdoor activities is unparalleled. While enjoying meals and picnics with family and friends at the park, RV campers are treated to great picnic amenities that make their picnicking experience memorable. What’s more, these picnic areas are open to all, and picnic shelters are available.

Boating

Whether you visit Tongue River Reservoir State Park with your boat attached to your RV or not, you are guaranteed a pleasant boating experience at the park. The park has two boat ramps with docks for you to launch your boats on to the reservoir, one located at Campers Point by the marina, and the other at Pee Wee North. With the boat rentals, boat storage and other amenities available at the marina store, the park has got you covered for the entire time you set out on your boating adventure on the lake.

Fishing

Tongue River Reservoir State Park is the ideal place to bring your love of fishing to life on your RV vacation. Boasting excellent quantities of crappie, walleye, bass, and northern pike, the Tongue River Reservoir offers wonderful opportunities for campers and anglers to enjoy themselves while fishing. Numerous fish that held “state records” have been pulled from the reservoir. Even more, fly fishermen get to test their skills on the river in the park. Even in winter, the reservoir is a popular ice fishing location. Facilities that add to the wonderful fishing experience are a fish cleaning station, and a marina store at Campers Point where fishing supplies are available.

Off-Season

Ice Skating

Tongue River Reservoir State Park offers ice skating opportunities for RV campers in winter months. With the proper gear, the ice-skating experience on the reservoir promises to be memorable for every camper. What’s more, the marina store in the park is equipped with supplies and gear for campers interested in ice skating.

Swimming

Swimming is allowed in designated areas in Tongue River Reservoir State Park, offering RV campers at the park the opportunity to enjoy swimming in the lake. All swimmers in the lake are required to be safety conscious while in the reservoir as lifeguards may or may not be on duty.

Wildlife Viewing

Tongue River Reservoir State Park is a great place to enjoy wildlife viewing while on RV holiday. Thanks to the abundant osprey, blue herons, deer, antelope, and a few bald eagles in the park, campers and visitors are treated to scenic and beautiful views of the wildlife in summer.

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