Cooney Reservoir — RV Camping in Montana, US

Cooney Reservoir State Park sits at 4,252 feet elevation in the rolling landscape of south-central Montana, approximately 40 minutes south of Billings near Roberts. Spanning a 309-acre reservoir, it is one of the most popular recreation areas in the region, drawing visitors year-round for its outstanding outdoor offerings. The park features five campgrounds with 82 campsites across rustic, tent, RV, and hike/bike configurations, including sites with water hookups. Anglers will appreciate the excellent walleye and rainbow trout fishing, complemented by a fish cleaning station at Red Lodge Arm. Three boat ramps with docks provide easy access for water skiing, motor boating, sailing, windsurfing, kayaking, and canoeing. On land, visitors enjoy hiking, mountain biking, bird watching, and wildlife viewing, while winter months bring ice fishing, ice skating, and snowshoeing. Amenities include picnic tables, grills, flush toilets, metered showers, playgrounds, a sand volleyball court, and ADA-accessible facilities. Pets are welcome, and camp hosts are on-site during the season. Whether seeking a family getaway or an adventure-filled retreat in the Montana wilderness, Cooney Reservoir delivers an exceptional basecamp for exploring Big Sky Country.