Big Trinity Lake Campground

Big Trinity Lake Campground Hero,


Big Trinity Lake Campground is within the beautiful Trinity Recreation Area.  There are17 campsites on Big Trinity Lake and there are more sites near the beautiful smaller lakes in Rainbow Basin.

The campgrounds in the Trinity Recreation area offer a quiet retreat in a beautiful high alpine landscape. The sites are situated within a popular summer recreation area with many activities to enjoy.

There is a limited season due to late snow melt, but they are accessible by car. 

Natural Features:

An adult moose and young calf stand together in a small clearing surrounded by trees at Big Trinity Lake Campground.
At Big Trinity Lake Campground, a fully grown moose stands near a young calf. USDA Forest Service Photo by David Walsh.

The campgrounds are located in a dense lodgepole pine forest close to the East Fork Roaring River at an elevation of 7,900 feet.  Nestled among four subalpine lakes: Big Roaring River Lake, Little Roaring River Lake, Big Trinity Lake and Little Trinity Lake. The peaks of the Boise Mountains surround the cabins, and Trinity Mountain, the tallest in the range at 9,700 feet, is just to the south.

Snow can make this area inaccessible until early July, but soon afterward, the land is blanketed by colorful summer wildflowers. This area is a haven for elk and deer, but wildlife watchers may also spot an occasional moose or black bear.



Hikers can access the 4-mile Rainbow Basin Trail System from Big Trinity Lake. The William H. Pogue National Recreation Trail and Lava Mountain Trail are for off-road vehicle enthusiasts, mountain bikers, hikers and horseback riders. Both of these trails can be accessed near Big Roaring River Lake. The Little Roaring River Trail at Little Roaring River Lake is also open to mountain bike, off-road vehicles and hiking. Click here for an Idaho OHV Safety Message.

Anglers can fish in any of the nearby lakes for rainbow and cutthroat trout. The lakes are also ideal for exploring by canoe or kayak.

Nearby Attractions:

The summit of Trinity Mountain is the highest drivable point in Idaho, although the road may be blocked by snow until early July. A short, steep hike takes visitors to the lookout tower for panoramic views of several subalpine lakes and other mountains in the Boise Range.

Fish Your National Forests: This site can be accessed by Passenger Car; Fish available include: Trout; Types of fishing available include: Wade, Shore, Non-motorized boat, Float tube, Fly, Spin, Bait, Ice; Boat Launch available

At a Glance

Current Conditions: Trinity Recreation Area normally opens in mid July. Call District for updates.  (208-587-7961)
Operational Hours: July 15 - October 1  (or until closed by snow) 
Reservations: No reservations are necessary.  First come, first serve.
Fees: This is a fee campground with 17 sites. Fee envelopes and a collection box are provided near the entrance.
Closest Towns: Mountain Home, Idaho
Water: Drinking Water
Restroom: Vault

General Information


From Boise, Idaho, travel east on Interstate 84 (I-84) to Mountain Home, Idaho.

At the I-84 and State Highway 20 junction, take Highway 20 east for 35 miles to Pine/Featherville turnoff.

Travel north on Forest Highway 61 for 29 miles to Forest Service (FS) road 172.

Proceed 15 miles northwest to FS road 129.

Continue 3 miles to the Guard Station junction. The roadway is paved up to the junction of FS road 172.

FS road 172 is native material (dirt) and trailer traffic is not recommended. There are signs noting each of the junctions.

Recreation Map

Map showing recreational areas. Map Information


Campground Camping

Total of 17 sites.

Lake and Pond Fishing

Wraps around the crystal clear Big Trinity Lake: Rainbow trout.
Difficulty Level: Intermediate

Day Hiking

Rainbow Basin #180 (foot) - 4 miles
Difficulty Level: Intermediate

Viewing Wildlife

Wildlife is in the area. Watch and you may get a glimpse.
Difficulty Level: Easy


Picnic tables are in the surrounding area.

Scenic Driving

Take a drive and enjoy the beautiful scenery that surrounds you.

Boating - Non-Motorized

Wraps around the crystal clear Big Trinity Lake and is well suited for canoes.

Recreation Areas

Recreation Activities


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