Cooney State Park

Roberts, Montana
Established 1970
500 acres

Cooney State Park is a popular reservoir park in south-central Montana known for boating, fishing, swimming, and camping. Set along the shores of Cooney Reservoir, it offers open water recreation, picnic areas, and scenic prairie-and-rimrock views in a relaxed, family-friendly setting.

Entrance Fee

8

Visiting with Dogs

Dogs allowed on leash; keep pets under control and clean up waste. Check posted rules for restricted areas.

Visitor Tips & Reviews

What Visitors Say

Peaceful lakeside park with great fishing, boating, camping, and scenic views. Visitors love the quiet atmosphere, family-friendly recreation, and easy access to water activities and wildlife.

Tips from Visitors

  • Bring water and sunscreen; shade can be limited.
  • Check weather before visiting; winds can change quickly.
  • Arrive early on busy weekends for better parking.
  • Pack fishing gear if you plan to use the reservoir.
  • Keep pets leashed and clean up after them.
  • Follow posted rules to protect wildlife and facilities.

Best Time to Visit

The best time to visit Cooney State Park is late spring through early fall, when the reservoir is warm enough for swimming and the campground is fully accessible. Summer weekends are busiest, while weekdays offer a quieter experience for fishing and boating.

Amenities

Kids PlaygroundRestroomsParkingPicnic AreasBoat RampCampgroundSwimming AreaFishing AccessDrinking WaterVault ToiletsDay-Use Areas

Nearby Attractions

Explore these attractions near Cooney State Park:

  • Yellowstone River
    A major regional river offering fishing, wildlife viewing, and scenic drives near the park.
    12 miles away
  • Stillwater River Valley
    A scenic agricultural and river corridor known for open landscapes, birding, and access to small Montana communities.
    18 miles away
  • Beartooth Highway
    One of Montana’s most famous scenic drives, reaching alpine country, overlooks, and mountain recreation.
    35 miles away

Things to Do at Cooney State Park

BoatingFishingSwimmingCampingPicnicking

Camping at Cooney State Park

Cooney State Park offers tent and RV camping with some hookups, restrooms, showers, picnic areas, and seasonal reservations.

Hiking Trails

Cooney State Park offers easy, relaxed day hiking with scenic views of the reservoir, open prairie, and surrounding hills. Trails are generally short and family-friendly, making the park a good choice for casual walkers, birdwatchers, and visitors looking for a peaceful outing rather than a strenuous hike. Conditions can be windy and exposed, so bring water, sun protection, and sturdy shoes.

Cooney Reservoir Shoreline Trail

Easy

A scenic shoreline walk with lake views, birdwatching, and access to picnic areas and fishing spots.

3.5 mi
1.5-2 hours
100 ft gain
Easy difficulty

North Shore Loop

Easy

A gentle loop along the north side of the reservoir offering open water views and wide, easy-to-follow paths.

4.2 mi
2-2.5 hours
150 ft gain
Easy difficulty

South Shore Connector

Easy

A shorter trail connecting day-use areas with quiet shoreline sections and opportunities to spot wildlife.

2.8 mi
1-1.5 hours
80 ft gain
Easy difficulty

Ridge View Access Trail

Moderate

A longer route with gradual climbs to higher viewpoints overlooking the reservoir and surrounding hills.

5 mi
2.5-3.5 hours
450 ft gain
Moderate difficulty

Directions

From I-90, take Exit 408 near Columbus and follow MT-78 south toward Roberts. Turn onto Cooney Dam Road and continue to the park entrance on the reservoir shore.

Frequently Asked Questions

What activities can I do at Cooney State Park?

Visitors commonly come for boating, fishing, swimming, camping, picnicking, and relaxing by the reservoir. Many reviews mention it as a good spot for family outings and water recreation in warm weather.

Is Cooney State Park good for fishing?

Yes. Anglers often visit for walleye, trout, and perch. Reviews frequently mention that fishing can be good, especially from a boat, though success varies by season and conditions.

Can I camp at Cooney State Park?

Yes, the park offers camping. Visitors often describe the campground as convenient and scenic, with easy access to the water. It’s a popular choice for both tents and RVs.

Is there swimming at Cooney State Park?

Yes, swimming is a popular summer activity. Reviewers often note the beach area as a family-friendly place to cool off, though water levels and conditions can vary.

Are pets allowed at Cooney State Park?

Pets are generally allowed in outdoor areas if kept under control and on a leash where required. Visitors often mention it as a pet-friendly park, but it’s best to check current park rules before visiting.

What do visitors usually say about Cooney State Park?

Reviews often describe it as peaceful, scenic, and great for a low-key getaway. People like the reservoir views, water access, and camping, though some mention that facilities and water levels can vary by season.

Location
camping and backpacking gear

Don’t Forget the Essentials

Essential camping & hiking gear we recommend to make your park trip easier and more comfortable.

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