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U.S. Forest Service · Sawtooth National Forest

Thompson Flat

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. 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. The campground contains three group sites, which can accommodate from 40 to 64 people, respectively.

Reservable13 sitesAccessibility info
Check availability on Recreation.gov ↗
Site 10 Driveway
USFS-Sawtooth National Forest, Minidoka Ranger District

Campsites

Standard, no hookups8
Group sites3
Host/management2
Total13

Amenities & rules

Pets allowedCampfires allowedMax vehicle length 60 ftRVs & trailersTents

Compiled from site-level records; individual sites vary. Confirm on Recreation.gov or with the managing office.

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.

Campgrounds nearby

Data source: Recreation.gov RIDB, retrieved August 30, 2026. The Campsite Atlas is an independent publication and is not affiliated with or endorsed by the Recreation.gov or any federal agency. Always confirm critical details on the official Recreation.gov page before you travel.