Cooney State Park in Montana

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Cooney State Park

Cooney State Park of south-central Montana is home to Cooney Reservoir, and offers several recreational opportunities including swimming, boating, fishing, and camping.

  • Entry fee of $6/day for non-residents 
  • Located 40 south of Billings and 20 miles north of Red Lodge. 
  • 3 day-use areas and 5 camping areas located on the shores of Cooney Reservoir, all with boat ramps. 
  • Cooney State Park offers fishing, camping, swimming, and boating.


Located just 40 miles south of Billings, Cooney State Park is a popular destination for locals, as well as tourists visiting south-central Montana. Cooney State Park is home to Cooney Reservoir, the largest body of still water in the area. Here, people can enjoy fishing, camping, and numerous water recreational sports.


Cooney State Park is located approximately 20 north of Red Lodge, between Highway 78 and Highway 212. Cooney can be accessed from either highway. From Highway 212, at Boyd turn onto Cooney Dam Road, and follow it west for 8 miles. From Highway 78, head east on Shane Creek Road for 13 miles. Both routes are marked by state park signs.


Cooney State Park is open year-round to host recreation sports of all seasons. During the winter, snow drifts on the road may cause difficulty driving, so be sure to check road conditions.


Camping fees are $14-$28 per night. Day-use for non-residents is $6 per vehicle and $4 for walk-in or bike-in. For Montana residents, these fees are waived. Pay stations can be located at each park entrance.


Within Cooney State Park, 72 campsites are available. Close to the shores of the reservoir, there are three day-use areas and five camping areas (three of which are wheelchair accessible). All of these sites offer concrete boat ramps. Campground sites include fire rings with grills, both flush and vault toilets, picnic tables, fish cleaning stations, drinking water, trash cans, and coin operated showers. Book Campsite Online.

Cooney Reservoir is stocked with trout and walleye yearly by the Montana Fish, Wildlife, and Parks. These fish usually grow to around 12 inches long by autumn. Other species in the lake include suckers and black crappie. Whether fishing from the banks or by boat, you’re sure to hook something good. For more information on Cooney fishing, visit our Cooney Reservoir fishing guide.

Water Recreation
Cooney Reservoir is one of the only bodies of still water in the area, making it a perfect place to swim and boat. To prevent any accidents, swimming is best done near the shores in the designated “no wake zone”. Boating sports are a very popular water recreation at Cooney Reservoir, including water skiing, intertubing, and wake boarding. Cooney can get very busy in the summer, so caution should be used when participating. Canoeing and kayaking are also enjoyable at Cooney, just remember to stay near the shore and watch for motor boats.


Cooney Reservoir State Park
Mailing Address: Cooney Reservoir State Park
Joliet, MT 59041
Tel: (406)445-2326