Idaho · published-coordinate region
Thompson Flat
Look beyond the campground name. Compare the actual sites and the details that matter to your trip.
USDA Forest Service11Supported overnight records
2Published site categories
11Sites with a reported party limit
A useful starting point, not a fit guarantee. Site-specific warnings are absent from this export. Published lengths may include a tow vehicle. Check the official site page for current notes, restrictions, approach and configuration before booking. No live availability is shown.
A closer look at the 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.
Full operator-supplied campground description · Scroll within the panel for more · Amenities may be shared by the campground, not present at every site
How much is documented?
Reported fields across the 11 supported campsite records here. A reported value can still need interpretation; missing values remain unknown in the planner.
Party limit
11
Vehicle limit
11
Vehicle length
11
Driveway entry
11
Shade
11
Bars show counts, not a quality, accessibility or suitability score.
The campsite mix
Standard Nonelectric
8
Group Standard Nonelectric
3
Operator directions
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.
Campground-level source text. Confirm the current route and road conditions with the operator.
THE ACTUAL SITES
11 published campsite records
Raw published values are shown below, including zeros and ambiguous text. They are not validated capacities. The planner keeps missing, zero and questionable dimensions unknown.
View all 11 published site records
| SITE / LOOP | TYPE | EQUIPMENT LIMITS | PEOPLE / VEHICLES | DRIVEWAY | ELECTRIC / SHADE |
|---|---|---|---|---|---|
| Site 02 THOMPSON FLAT Source updated: 2025-12-03 | Standard Nonelectric | Rv: 50 ft Tent: 60 ft Trailer: 50 ft Numeric screening only | 16 people 4 vehicles | Back-In 50 (raw length) | Not reported Shade: Yes |
| Site 06 THOMPSON FLAT Source updated: 2025-12-03 | Standard Nonelectric | Rv: 48 ft Tent: 60 ft Trailer: 48 ft Numeric screening only | 8 people 2 vehicles | Back-In 48 (raw length) | Not reported Shade: Yes |
| Site 10 THOMPSON FLAT Source updated: 2025-12-03 | Standard Nonelectric | Rv: 60 ft Tent: 60 ft Trailer: 60 ft Numeric screening only | 16 people 4 vehicles | Back-In 60 (raw length) | Not reported Shade: Yes |
| Site 11 THOMPSON FLAT Source updated: 2025-12-03 | Standard Nonelectric | Rv: 56 ft Tent: 60 ft Trailer: 56 ft Numeric screening only | 8 people 2 vehicles | Back-In 56 (raw length) | Not reported Shade: Yes |
| Site 12 THOMPSON FLAT Source updated: 2025-12-03 | Standard Nonelectric | Rv: 60 ft Tent: 60 ft Trailer: 60 ft Numeric screening only | 16 people 4 vehicles | Back-In 60 (raw length) | Not reported Shade: Yes |
| Site 17 THOMPSON FLAT Source updated: 2025-12-03 | Standard Nonelectric | Rv: 60 ft Tent: 60 ft Trailer: 60 ft Numeric screening only | 8 people 2 vehicles | Back-In 60 (raw length) | Not reported Shade: Yes |
| Site 19 THOMPSON FLAT Source updated: 2025-12-03 | Standard Nonelectric | Rv: 52 ft Tent: 60 ft Trailer: 52 ft Numeric screening only | 16 people 4 vehicles | Back-In 52 (raw length) | Not reported Shade: Yes |
| Site 20 THOMPSON FLAT Source updated: 2025-12-03 | Standard Nonelectric | Rv: 53 ft Tent: 60 ft Trailer: 53 ft Numeric screening only | 8 people 2 vehicles | Back-In 53 (raw length) | Not reported Shade: Yes |
| Site A1 -A5 LOOP A Source updated: 2025-12-03 | Group Standard Nonelectric | Rv: 60 ft Tent: 60 ft Trailer: 60 ft Numeric screening only | 40 people 10 vehicles | Back-In 60 (raw length) | Not reported Shade: Yes |
| Site B1 -B8 LOOP B Source updated: 2025-12-03 | Group Standard Nonelectric | Rv: 60 ft Tent: 60 ft Trailer: 60 ft Numeric screening only | 64 people 16 vehicles | Back-In 60 (raw length) | Not reported Shade: Yes |
| Site C1-C4 LOOP C Source updated: 2025-12-03 | Group Standard Nonelectric | Rv: 60 ft Tent: 60 ft Trailer: 60 ft Numeric screening only | 56 people 14 vehicles | Back-In 60 (raw length) | Not reported Shade: Yes |
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