Location in Montana

Parks Logo Cooney

State Park on Cooney Reservoir

Region 5 | Yellowstone Country


Cooney Reservoir State Park - A sunset over Cooney reservoir as seen from Marshall Cove.

Cooney State Park - Cooney State Park Cooney State Park - Fishing at Cooney State Park Cooney State Park - Jetskiing at Cooney State Park Cooney State Park - The Beartooth Mountains, as seen from Cooney State Park Cooney State Park - Campground at Cooney State Park Cooney State Park - Sunset at Cooney State Park. Cooney State Park - Cooney State Park Cooney State Park - Frosty day at Cooney State Park sunset boating at Cooney - Cooney, sunset, boating
Open: Jan 1—Dec 31
Size: 309 acres
Elevation: 4252 ft
Nearest Town: Joliet

Head to this reservoir 40 minutes south of Billings to boat, play in the water, camp, and fish. The most popular recreation area serving south central Montana, it's always a busy place in the summer. The park features good walleye and rainbow trout fishing, boating opportunities, and five campgrounds around the lake. Eleven campsites with electricity are now available at Red Lodge Campground.

The park is open year-round for other recreational opportunities. Beginning 2010, a concession at the park sells soda, water, various drinks, snacks, firewood, bait, ice, and emergency items for boats such fire extinguishers and throwable devices. Open Thursday-Sunday, 8 AM -8 PM., Memorial Day through Labor Day. During the winter months, Cooney State Park is a great place to ice fish and cross country ski.

Hunting Area Map (PDF)

A management plan, for Cooney State Park is being developed to address the future of this popular recreation area.

Download the Cooney State Park brochure.

Download the Cooney State Park rules and regulations brochure.

Cooney State Park is located on Cooney Reservoir


22 miles southwest of Laurel on U.S. 212, then 8 miles west of Boyd on county road. Or, south of Columbus 4 miles to Shane Creek Road, 14 miles east.   (Lat 45.442,  Lng  -109.205)

Contact Information
Contact Information

If you have questions or comments please send mail to: Cooney, 86 Lake Shore Road Roberts, MT  59070 or call (406) 445-2326.

Restrictions & Closures
Restrictions & Closures
Marshall Cove Campground
No pets allowed.
Pet Restriction
Leash required.
Stage 2 Fire Restriction
Stage II Fire Restrictions
Stay Limit
Maximum stay of 7 days allowed.
Vehicle Length
Combined Length of unit is 60ft.
  • Easy Accessibility
  • Difficult Accessibility
  • Difficult Accessibility
  • Easy Accessibility
  • Easy Accessibility
  • Bicycling
  • Group Use
  • Hiking
  • Wildlife Viewing
  • Water Skiing
  • Nordic Skiing
  • Hunting
  • Boating - non-motorized
  • Photography
  • Archery
Boat Services
Boat Services
  • Dock
  • Hookup
  • Ramp (Concrete)
  • Ramp (unspecified)
  • Camp Host
  • Campground
  • Campsite
  • Group Site
  • Tent Site
  • Tent/RV Site
  • Boat Trailer Parking
  • Extra Vehicle Parking
  • Fish Cleaning Station
  • Food Concession
  • Information Kiosk/Map
  • Playground
Picnic Site
Picnic Site
  • Fire Ring
  • Grill (Pedestal)
  • Grill (Ring)
  • Group Use - Unsheltered
  • Picnic Table
  • Hookup (Electric - 50 Amp)
  • Hookup (Electric)
  • Drinking Water
  • Garbage Bins
  • Showers - Open from 5/01 to 09/30.
  • Showers
  • Toilet (Flush)
  • Toilet (Vault)
  • Water (Pressurized)
  • Bike Trail
  • Hiking Trail
State Park Camping
May 1–Sep 30