Big Therriault Lake
Its 10 sites are first-come, first-served (no reservations), camping costs $10 per night, and it is open from June 29 to September 8. Big Therriault Lake is a National Forest campground near Fortine, Montana.
First-come, first-served
- National Forest
- Managed by
- 32 ft
- Max RV length
Big Therriault Lake sits inside Kootenai National Forest. Its dispersed-camping rule, ranger offices, and boundary are on publiclandsdb.com.
Getting a site
- Managed by
- National Forest
- Reservations
- None, first-come
- Fee
- $10 per night
Source: fs.usda.gov, accessed 2026-09-30
Sites and hookups
- Total sites
- 10
- Max RV length
- 32 ft
- ✓ Toilets
- ✓ Potable water
- ✓ Fire rings
- ✓ Pets allowed
On site: Toilets, potable water, fire rings, and pets allowed.
Source: fs.usda.gov, accessed 2026-09-30
Rules
- Stay limit
- 16 days
- Pets
- Allowed
- Campground host
- On site
Source: fs.usda.gov, accessed 2026-09-30
Access and cell service
- Elevation
- 5,400 ft
48.9360, -114.8794 in Lincoln. Open in OpenStreetMap. Map © OpenStreetMap contributors.
Season and winter services
Big Therriault Lake is open from June 29 to September 8 , at 5,400 ft.
Source: fs.usda.gov, accessed 2026-09-30
Common questions
Do you need a reservation at Big Therriault Lake?
No. Big Therriault Lake is first-come, first-served: there is no reservation system, so arrive early to claim an open site.
How much does it cost to camp at Big Therriault Lake?
Camping at Big Therriault Lake costs $10 per night.
How many campsites does Big Therriault Lake have?
Big Therriault Lake has 10 campsites.
Is there drinking water at Big Therriault Lake?
Yes, Big Therriault Lake has potable water. It also has toilets.
Are dogs allowed at Big Therriault Lake?
Yes, pets are allowed at Big Therriault Lake.
When is Big Therriault Lake open?
Big Therriault Lake is open from June 29 to September 8.
How long can you stay at Big Therriault Lake?
The stay limit at Big Therriault Lake is 16 days.
Is there a campground host at Big Therriault Lake?
Yes, Big Therriault Lake has a campground host on site.
Who manages Big Therriault Lake?
Big Therriault Lake is managed by the U.S. Forest Service.
Around Big Therriault Lake
- Sites
- 6
- Season
- June 29 to Labor Day
- Fee
- $10 per night
- Sites
- Not on record
- Season
- Not on record
- Fee
- Not on record
- Sites
- Not on record
- Season
- Not on record
- Fee
- Free
- Sites
- Not on record
- Season
- Not on record
- Fee
- Free
More campgrounds: camping near Fortine and campgrounds in Lincoln.
Sources
- apps.fs.usda.gov (all fields), accessed 2026-09-30
- fs.usda.gov (sites.total, maxRvLengthFt, petsAllowed, stayLimit, fee, toilets, fireRings, season, hostOnSite), accessed 2026-09-30