Painted Rocks State Park
Montana’s Bitterroot Mountain Reservoir — 25-Site Campground, Kokanee Salmon & Rainbow Trout, Boating, Wildlife Viewing & Backcountry Solitude Near Darby
Painted Rocks State Park is a 25-site primitive campground on Painted Rocks Reservoir in the West Fork Valley of the Bitterroot Mountains, approximately 24 miles south of Darby, Montana. The park offers boat ramp and dock access, fishing for rainbow trout and kokanee salmon, swimming, and some of Montana’s finest backcountry wildlife viewing — elk, deer, moose, bighorn sheep, and diverse birdlife inhabit the surrounding Bitterroot National Forest.
This is genuine backcountry Montana — no potable water, no electricity, no trash service. Painted Rocks operates on a pack-in/pack-out ethic. The reservoir’s setting between towering Bitterroot peaks provides a dramatic alpine backdrop. Six sites are reservable during peak season (Memorial Day–Labor Day); the remaining 19 are first-come, first-served. Year-round access makes Painted Rocks a four-season destination, with ice fishing popular during winter months.
Things to Do
Fishing
- Rainbow trout: The primary sport fish in Painted Rocks Reservoir
- Kokanee salmon: Landlocked sockeye salmon — exciting sport on light tackle
- Ice fishing: Popular winter activity on the frozen reservoir
- Montana fishing license required
Boating
- Boat ramp and dock: Motorized and non-motorized watercraft
- Kayaking, canoeing, and paddleboarding
- ⚠️ Late summer note: Reservoir levels drop significantly after August 1 — hand-launch only from the ramp during low water
Wildlife Viewing
- Elk, mule deer, moose, and white-tailed deer
- Bighorn sheep in the surrounding Bitterroot Mountains
- Birdlife: Eagles, osprey, hawks, and diverse forest and riparian species
Swimming
Shoreline swimming in the reservoir — no designated beach or lifeguards.
Camping
| Feature | Details |
|---|---|
| Sites | 25 total (6 reservable Memorial Day–Labor Day, Thu–Sun; 19 FCFS) |
| RV Limit | 25 ft max (2 sites accommodate up to 35 ft) |
| Hookups | NONE — no electric, no water, no sewer |
| Potable Water | NONE — bring all water |
| Facilities | Vault toilets; picnic tables; fire rings/grills |
| Trash | Pack-in/pack-out — no trash service |
| ADA | Accessible facilities available |
| Pets | Allowed on leash |
| Season | Year-round |
Best Time to Visit
| Season | Highlights | Considerations |
|---|---|---|
| Summer (Jun–Jul) | ⭐ PEAK: Full reservoir; boating; swimming; trout + kokanee active; wildflowers; longest days | 6 sites reservable; rest FCFS — arrive early; no services |
| Fall (Sep–Oct) | ⭐ Larch turning gold; elk bugling; kokanee spawning; quiet; dramatic mountain color | Reservoir low; cold nights; limited boat access; pack warm gear |
| Spring (Apr–May) | Wildlife emerging; birding; reservoir filling; wildflowers; solitude | Cold water; muddy roads possible; snow at elevation; variable weather |
| Winter (Nov–Mar) | Ice fishing; snow-covered mountains; total solitude; cross-country skiing nearby | Cold; road conditions variable; check access before traveling; short days |
Visitor Tips
- Pack everything: Painted Rocks is fully primitive — no water, no electricity, no trash service. Bring all water, food, fuel, and supplies. Pack out all garbage.
- Reservoir levels: Water levels drop significantly after August 1 — by late summer, the boat ramp may only support hand-launching. Plan water activities for June–July.
- Kokanee salmon: Painted Rocks holds landlocked kokanee (sockeye) salmon — a unique fishery in Montana. These fish are exciting on ultralight gear.
- RV size: Most sites accommodate 25 ft max — only 2 sites fit up to 35 ft. This is not a big-rig park.
- Wildlife safety: Bears (black and grizzly) inhabit the Bitterroot area. Store food properly. Carry bear spray.
- Bitterroot Valley: The town of Darby (24 miles north) provides basic supplies, fuel, and dining. Stock up before heading to the reservoir.
Frequently Asked Questions
What fish are in Painted Rocks Reservoir Montana?
Painted Rocks Reservoir supports rainbow trout and kokanee salmon (landlocked sockeye salmon). The reservoir is also popular for ice fishing during winter months. A valid Montana fishing license is required. The kokanee salmon provide an unusual fishery for Montana — these fish are exciting on light tackle and can be caught from shore or by boat. The reservoir is set in the Bitterroot Mountains at the southern end of the West Fork Valley.
Is there drinking water at Painted Rocks State Park?
No — Painted Rocks State Park has no potable (drinking) water. The park is fully primitive with no electric hookups, no water hookups, no sewer, and no trash service. Visitors must bring all their own water and supplies and pack out all garbage. Vault toilets, picnic tables, and fire rings are provided at each of the 25 campsites. The nearest services are in Darby, Montana, approximately 24 miles to the north.
Last updated: May 2026
