Cooney State Park
Also known as Cooney Reservoir State Park
- Status
- Status not postedOpen 24 hours
- Entrance fee
- $8 per dayAnnual pass available
- Day-use reservations
- None mentioned
- Dogs
- Statewide rule — see below
- Camping
- Yes
- Official site
- fwp.mt.gov(406) 445-2326
Official page last checked Oct 29, 2026. How we keep this current
Overview
Cooney State Park is a 354-acre park in Carbon County, about 14 miles south of Columbus.
Popular activities here are surfing, cross-country skiing, horseback riding, ice fishing, and mountain biking. Facilities for water recreation include a boat ramp. Camping is available: campsites, including RV sites, tent sites, group camping, and showers.
Hours
Park, gate, office and facility hours are listed separately because they often differ. Alerts above override normal hours.
| Facility | Days | Hours | Season |
|---|---|---|---|
| Park | Open 24 hours | ||
Official wording
Open 24 hours/day all year.
Drinking Water: Available May 15 - September 27.
Comfort Stations & Showers: Flush toilets available May 15 - September 27. Metered showers available to all registered campers in Marshall Cove Campground. Requires 8 quarters for each shower.
Docks: Available May 1 - November 1, weather dependent
Source: official park page, checked Oct 29, 2026. Times are local to the park (America/Denver).
Fees and passes
| Item | Amount |
|---|---|
| Montana residents who pay the (resident) | $9 · year |
| 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 (nonresident) | Free |
| Campsite fees range from | $4 · night |
| Campsite fees range from | $34 · night |
Official wording
Montana Residents • 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. 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 park passes
- State parks fee with Montana vehicle registration — $9 per vehicle per year (residents). No daily entrance fees to state parks for that vehicle Details
- Nonresident Entrance Pass (12-month) — $50 per vehicle. Free entrance and discounted camping ($10-$12/night) for one year from month of issue Details
- 7-Day Nonresident Entrance Pass — $35. Entrance for 7 consecutive days and discounted camping; sold at parks only Details
From the Montana state guide. Confirm which passes this park accepts.
Reservations
- Day use
- No day-use reservation requirement mentioned
- Booking system
- ReserveAmerica (montanastateparks.reserveamerica.com)
- Phone
- 1-855-922-6768
We link to the official booking system rather than showing live availability, which changes minute to minute.
Pets
See the park’s wording
Pets Allowed (amenity list)
Service animals are generally permitted where pets are not. Check with the park for specific areas.
Camping
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.
From the official park page, checked Oct 29, 2026. Site counts and prices can change; confirm when booking.
Things to do
BikingWildlife viewing and birdingBoatingCampingCanoeing and kayakingWinter sportsCross-country skiingFishingHikingHorseback ridingHuntingIce fishingMountain bikingPicnickingSwimmingSurfing
Amenities
Facilities
- Restrooms
- Flush toilets
- Showers
- Picnic areas
- Playground
- Parking
- Group facilities
Water
- Boat ramp
Camping
- Tent camping
- RV camping
- Group camping
✓ listed by the park · ✕ the park says it is not available. Anything not shown here isn’t mentioned by the official source — that means unknown, not unavailable.
Accessibility
Amenities: ADA Accessible
Conditions change. Contact the park to confirm specific accessible features before your visit.
Getting there
- Address
- 86 Lake Shore Road
Roberts, MT 59070 - Nearest town
- Columbus — about 14 mi south (straight line)
- Coordinates
- 45.4420, -109.2050
- Phone
- (406) 445-2326
- Dennis.Merkel@mt.gov
Nearby state parks
Sources and freshness
- Montana State Parks — park page — last checked Oct 29, 2026
- Montana State Parks Find a Park list, joined with FWP 'State Park Locations' ArcGIS layer
- Wikidata
- USGS PAD-US 4.1 (boundary and acreage)
“Last checked” is when our system last read the official source. No change has been detected since this page was first published. Hours, fees and rules can change without notice — confirm with the park before you go. Methodology