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Camping · Montana

Big Therriault Lake Campground

USFS · Campground · Fee

Fast facts

Cost
Fee charged
Managed by
USFS
Type
Campground
Hours
Open 24 hours/day
Reservations
fs.usda.gov
Coordinates
48.9367, -114.8778
Last verified
September 19, 2026
48.9367° N · 114.8778° W
Last verifiedSeptember 19, 2026

About this place

The Big Therriault Lake campground is located 12.5 air miles from Fortine. The campground has 10 campsite, including one host site, with tables, fire rings and able to accomodate up to a 32' rv. Amenities include potable water, vault toilets, food storage boxes and boat ramp developed for small boats.

From the USFS.

Is Big Therriault Lake Campground free?

No. Big Therriault Lake Campground charges a fee. It is managed by the USFS. Sites are reservable through fs.usda.gov.

How do I get to Big Therriault Lake Campground?

From Fortine follow Hwy 93 northeast approximately 3 miles (mile post 169.34) and turn right onto Grave Creek road 114. Follow road 114 for 14 miles to the junction with Therriault Lakes road 319. Continue north on road 319 for 14 miles to the Y. Turn left onto Big Therriault Lake road 7116 and follow for 0.03 miles to the campground. Dump facilities, laundry, showers, gas, ice and store are located in Eureka.

Nearby

No other services within 50 mi on the record.

SourceData from the USFS. Last synced September 19, 2026. Community reports and photos are submitted by travelers and are not verified by the agency.

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Disclaimer TerrainKit is an independent product with no affiliation with, sponsorship from or endorsement by the U.S. Forest Service, the Bureau of Land Management, the National Park Service or any other public agency. Site and access information is compiled from publicly available sources and can go out of date without notice. Confirm current rules, closures, fire restrictions and stay limits with the managing ranger district or field office before you camp.
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47.5053° N · 111.3008° W
Big Therriault Lake Campground, Camping in Montana - TerrainKit