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Recreation Region: Plains/Thompson Falls Area

Copper King Campground

This campground is in a moist river bottom cedar forest (bring your bug repellent in June and July). Adjacent Thompson River offers fishing opportunities. Access for large vehicles can be challenging.

View the site through the interactive map

Reservations

This campground is first-come, first-served. 

General Information

A picnic table and fire ring is available at each campsite. The campground road is not suitable for long vehicles or trailers. The group site is available on a first-come, first-served basis.

May 14, 2026 - mid fall

Open 24 hours/day

Please visit the Forest's Alerts page for information on restrictions, in particular please review the Food/Wildlife Attractant Storage Order to help reduce the likelihood of human-to-bear conflicts. 

No fees are required for this site

Photo of the Plains/Thompson Falls Ranger Station in Plains, Montana on an early spring day.

Address: 408 Clayton Plains, MT 59859
Phone: 406-826-3821
Hours: Monday-Friday, 8:00 a.m. - 4:30 p.m. (Closed on federal holidays)

Getting There

Latitude / Longitude

Latitude: 47.619383

Longitude: -115.187897

Directions

From the town of Thompson Falls, travel east on state highway 200. Turn left (north) onto the paved Thompson River Road (do not take the graveled road).

Facility and Amenity Information

Restrooms

Vault toilet(s)

Water

Potable water is not available at this site.

Picnic Tables

Picnic tables are available at this site.

Horse/Pack Animal Information

Horse/Pack animals are not allowed at this site.

Recreation Opportunities

Fishing - River/StreamFishing - River/Stream

Last updated May 18, 2026