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Thompson Falls State Park

Enjoy some good fishing, boating, bird watching and relaxing. This shaded, quiet area has a campground located on the Clark Fork River in the rugged and beautiful Clark Fork Valley.

About the Park

A mature, mixed pine forest are features visitors enjoy in this beautiful state park. Attractions include camping, fishing, nature walks, swimming, boating, wildlife viewing, and bird watching.

Enjoy the park’s improved family fishing pond, with new features including an accessible fishing pier, new picnic shelter, latrine and improved parking. Explore the recently expanded non-motorized Thompson Falls Trail which runs along the Clark Fork River and connects to the HWY 200 trail into town. Learn more about the Thompson Falls Community Trails network.

Thompson Falls State Park is 36 acres at an elevation of 2,362 feet.

There are 18 campsites with a maximum trailer length of 30 feet.

Alerts & Closures

Restrictions and Closures

See a current list of Restrictions and Closures on State Parks and other FWP lands that may be affected by floods, fire, drought or major maintenance activities.


  • Bird Watching

  • Boating

  • Canoeing

  • Fishing

  • Group Camping

  • Hiking

  • Motor Boating

  • Photography

  • Picnicking

  • River Fishing

  • RV Camping

  • Swimming

  • Tent Camping

  • Wildlife Viewing


Some amenities are seasonal. Check with the park for availability.

  • ADA Accessible

  • Bear Resistant Storage Lockers

  • Boat Launch

  • Camp Host

  • Established Fire Pits

  • Firewood for Sale

  • Fishing Pond

  • Grills/Fire Rings

  • Maps

  • Parking

  • Pets Allowed

  • Picnic Shelter

  • Toilets (Vault)

  • Trails

  • Trash Removal

  • Water

Seasons & Hours


March - October


May 1 (earlier if conditions allow) through October


April - October

Potable Water

May - September


March - October

Park Rules


Contact the park manager for open volunteer positions at Thompson Falls State Park.

For complete position descriptions, application forms, and details about Montana State Parks volunteer programs, visit the Volunteers page.


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.


  • 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


  • 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. 

Visit Reserve America to check fees and reserve a campsite at Thompson Falls State Park.

Contact Information

Mailing Address:
Thompson Falls State Park
2220 Blue Slide Rd.
Thompson Falls, MT 59873


Oct 1 - April 30: 406-755-2706, ext. 3
May 1 - Sept 30: 406-827-3110



Reservation Phone Number: 1-855-922-6768

Camping Reservation Website:

Recreate Responsibly

Tips to stay safe while getting outdoors

To keep our state parks safe and accessible to all, make sure you know before you go, practice physical distancing, plan ahead, play it safe, explore locally, leave no trace, respect wildlife, and do your part to build an inclusive outdoors. 

Visit the Recreate Responsibly page for more information 

Thompson Falls State Park


2220 Blue Slide Rd.
Thompson Falls, MT 59873
(47.61625 / -115.38676)

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Park map

View the park map to learn more about amenities, parking and camping details

View Park Map 
Park fees

Learn about fees and regulations for all Montana State Parks

View Fees >

Meet The Park Manager

Brian Schwartz

Brian Schwartz oversees Lone Pine, Thompson Falls and Lake Mary Ronan state parks. He also manages Smith Lake Fishing Access Site (FAS) and multiple other FAS along the Clark Fork River. He previously served as a park warden with Montana Fish, Wildlife & Parks, with the the Minnesota Department of Natural Resources, as a camp director on Flathead Lake, and as recreation programmer for the city of Whitefish. Brian has a Bachelor of Science in Recreation, Parks and Leisure Services with an emphasis in Resource Management from Mankato State University. 

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