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State Park
Big Trinity Cabin
Mountain Home, ID
Verify with the state park system
State parks set their own rules and reservation systems. Fire bans, road closures, and operating dates change seasonally — check the state park website before traveling.
2 Cabin
Official sources & verification
Managed by State Park
Source of truth
- Operator website
Listed website for the campground operator.
Verify by phone or mail
- Operator:208-587-7961
- Email:wbelt@fs.fed.us
- Address:3080 INDUSTRIAL WAY · Mountain Home, ID · 83647
Live availability
via Recreation.govSee every open campground nearbySame dates & filters, across the whole area
Availability is a recent snapshot, not a live hold — you always complete the booking on recreation.gov.
About
Overview
Big Trinity Cabin offers a quiet retreat in a beautiful high alpine landscape. The cabin is situated within a popular summer recreation area with many activities to enjoy. The cabin has a limited season due to late snow melt, but is accessible by vehicles with reasonable ground clearance. Many creature comforts are provided; however, guests may want to bring some supplies and gear to make their experience more comfortable and enjoyable.
Recreation
The 4- mile Rainbow Basin Trail system for pedestrain travel only, offers access to several lakes, hikers can access the trail System from the trailhead located within Big Trinity Lake campground. Other trails within the area Roaring River trail 045, and Lava Mountain trail 125, these are motorized motorcycle trails. 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.
Facilities
The cabin sleeps six and is equipped with one double bed, a sofa bed, side tables, a drop-down kitchen table, cleaning supplies, dishes and tableware, chairs and a dining table, cookware and a fire extinguisher. A wood stove is available for heating and cooking. A picnic table and campfire ring with grill are provided outside. Drinking water is available from a nearby hand pump. A shed located behind the cabin is stocked with seasoned wood, a splitting maul, axe and hatchet. A vault restroom is located outside. No electricity or propane is available. Guests must bring garbage bags to pack out their trash. Bedding, lighting and emergency supplies are not provided. Guests are responsible for cleaning the cabin before leaving.
Natural Features
The cabin is located in a dense lodgepole pine forest close to the East Fork Roaring River at an elevation of 7,900 feet. It's 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 9,451 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 black bear.
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.
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Amenities
Flush Toilets
Picnic Tables
Fire Rings
Pet Policy
Pets allowed on leash
Campground Rules
- Campfires generally permitted — verify current fire restrictions before lighting
Individual Sites (2)
Within ~30 miles
Trails near Big Trinity Cabin
Hunt context
Hunting units around this campground
During hunting seasons, wear blaze orange and check regulations — see the Idaho hunting page
Nearby Campgrounds
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