
Weekend availability at Thompson Flat
Live from Recreation.gov · checked Sep 18, 9:45 AM PTSold out 1 of the next 2 weekends — exactly when cancellation alerts earn their keep.
- Fri, Sep 18Sold out
- Fri, Sep 25Open9/11 sites
Friday + Saturday nights, sites bookable both nights. Counts come from a rotating sweep and can lag a cancellation by up to a day — alerts watch your exact dates within minutes.
Campsites & amenities
Site-level details from Recreation.gov's official catalog.
- Campsites
- 13
- Max rig length
- 60 ft
About this campground
Overview Thompson Flat Campground is located high in the Albion Mountain Range of southern Idaho, near the towns of Declo and Albion. Visitors enjoy the area for its abundant trails, alpine lakes and scenic beauty.Recreation The Twin Lakes Campground area is located just outside the campground and across the road. It offers picnic areas, horse corrals and access to a variety of trails. Lake Cleveland is a two-mile drive from the campground, offering fishing, canoeing and trail opportunities. Several additional hiking, mountain biking, horse and off-road vehicle trails are on the mountain. Facilities The campground contains three group sites, which can accommodate from 40 to 64 people, respectively. All sites are equipped with large picnic tables and campfire rings with grills. There are four reservable single units and four double unit campsites as well as 17 additional single-family campsites that are available on a first-come, first-served basis, but the group sites must be reserved. Accessible vault toilets are provided. A campground host is located on-site. Roads and parking spurs within the campground are gravel.Natural Features The campground is situated in a beautiful wildflower-filled meadow lined with tall pine and fir trees, on the eastern slope of Mount Harrison. It sits at an elevation of 8,400 feet. Nearby Attractions A visit up the road to the Mount Harrison Lookout offers interesting area information and breathtaking panoramic views of the valleys below. Pomerelle Ski Area, just below Thompson Flat, offers lift-served hiking and mountain biking, scenic chairlift rides and a few dining options, generally on weekends.
Getting there
From Interstate 84, take exit 216 and follow State Highway 77 south for approximately 18 miles, through the towns of Declo and Albion, to Howell Canyon Road. Turn west at the Pomerelle Ski Area sign and drive seven miles up the canyon on Howell Canyon Road. The road is steep and winding, watch for the campground entrance sign on the right.
Activities
- WILDLIFE VIEWING
- HUNTING
- HORSEBACK RIDING
- HIKING
- FISHING
- CAMPING
- BOATING
- BIKING
Nearby federal campgrounds
- Lake ClevelandSawtooth National Forest1 mi
- Lake Cleveland - East SideSawtooth National Forest1 mi
- Lake Cleveland Campground - West SideSawtooth National Forest1 mi
- Mt. Harrison LookoutSawtooth National Forest2 mi
- Independence Lakes CampgroundSawtooth National Forest8 mi
- Minidoka Ranger DistrictSawtooth National Forest15 mi
Never miss an opening at Thompson Flat
Popular Idaho campgrounds book out months ahead — but cancellations happen every day. We watch Thompson Flat around the clock and alert you the moment a sold-out site reopens for your dates, so you don't have to keep refreshing Recreation.gov.
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Details from Recreation.gov's official RIDB catalog. Conditions change — confirm with the managing office or on Recreation.gov before you go. Not affiliated with Recreation.gov or any federal agency.