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Cooney State Park

Visit the most popular recreation area serving south central Montana featuring excellent walleye and rainbow trout fishing, boating, water-skiing and scenic mountain views.

About the Park

Head to Cooney State Park's reservoir 40 minutes south of Billings to boat, play in the water, camp, and fish. This is the most popular recreation area serving south central Montana, and it's always a busy place in the summer!

The park features good walleye and rainbow trout fishing, abundant boating opportunities, and five campgrounds with 82 campsites and three group use areas available daily around the lake. Nineteen campsites with electricity are available.

The park offers three boat ramps with docks and a fish cleaning station at Red Lodge Arm.

Park size: 309 acres. Elevation: 4,252 feet.

Activities

  • Bicycling
  • Bird Watching
  • Boating
  • Camping
  • Canoeing
  • Cross-Country Skiing
  • Fishing
  • Group Camping
  • Hiking
  • Horseshoes
  • Ice Fishing
  • Ice Skating
  • Kayaking
  • Lake Fishing
  • Motor Boating
  • Mountain Biking
  • Photography
  • Picnicking
  • Running
  • RV Camping
  • Sailing
  • Sand Volleyball Court
  • Sightseeing
  • Snowshoeing
  • Swimming
  • Water Skiing
  • Wildlife Viewing
  • Wind Surfing

Amenities

Some amenities are seasonal. Check with the park for availability.

  • ADA Accessible
  • Boat Launch
  • Campsite
  • Camp Host
  • Dock
  • Electricity
  • Established Fire Pits
  • Grills/Fire Rings
  • Parking
  • Pets Allowed
  • Picnic Tables
  • Playground
  • Public Restroom
  • Shower
  • Toilets (Flush)
  • Toilets (Vault)
  • Trash Removal
  • Water

Seasons & Hours

Hours listed below are normal operating hours and may not apply when there is a special restriction or closure. Check Alerts and Closures in the tab below.

Park
Open 24 hours/day all year.

Electricity
Available

Drinking Water
Available May 15 - September 27.

Comfort Stations & Showers
Flush toilets available May 15 - September 27.
Showers not available to reduce spread of COVID-19

Docks
Available May 1 - November 1, weather dependent

Alerts & Closures

Stage I Fire Restrictions (campfire exemption): Campfires allowed in designated steel fire grates ONLY. NO SMOKING, except inside a vehicle or while stopped in an area at least 3 feet in diameter that is cleared of all flammable materials.

Pets must be on a leash at all times.

Park Rules

Volunteer

Contact the park manager for open volunteer positions at Cooney State Park.

For complete position descriptions, application forms, and details about Montana State Parks volunteer programs, visit the Volunteers page.

Fees

Montana Residents

  • Day use entrance is free*

 

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. To check fees or reserve a campsite at Cooney State Park, click here.

 

* 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.

Contact Information

Mailing Address:
Cooney State Park
86 Lake Shore Road
Roberts, MT 59070

Phone: 406-445-2326
Email: myoshioka@mt.gov

Aquatic Invasive Species

What can you do to prevent the spread of Aquatic Invasive Species?

Aquatic invasive species (AIS), including diseases, are easily spread from one water body to the other. Anglers, boaters, construction workers, pond owners, gardeners, seaplane pilots, field workers - virtually anyone who works or plays in or around water can unknowingly transport these pests on their boats and equipment or allow them to spread via improper management practices. It takes only one mistake to potentially infest a new water body. To protect Montana’s waters and native aquatic species, please follow the rules and guidelines at cleandraindry.mt.gov.

Visit CleanDrainDry.mt.gov 

Cooney State Park

Address

86 Lake Shore Road
Roberts, MT 59070
Latitude/Longitude:
(45.44200 / -109.20500)

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Park map

View the park map to learn more about amenities, parking and camping details

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Park fees

Learn about fees and regulations for all Montana State Parks

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Meet The Park Manager

Marina Matheson

Marina Yoshioka has a BLA in Landscape Architecture from the University of Georgia and professional experience in outdoor recreation, natural and cultural resource protection, community outreach, environmental education, public relations and project management. Marina previously worked as manager of Hell Creek State Park, as a ranger at Tongue River State Park and as an FWP Hunting Access technician. She manages Cooney State Park and Greycliff Prairie Dog Town State Park.

CONTACT INFO
Mailing Address:
Cooney State Park
86 Lake Shore Road
Roberts, MT 59070

Phone: 406-445-2326
Email: myoshioka@mt.gov

Photo of Park Manager, Marina Matheson