Cottonwood Campground
The numbers that decide it
Recreation.gov publishes no site-level detail for this campground, so we cannot say what length of rig it takes. Call the managing office before committing to it in a large vehicle.
Site-level RV detail confirmed against Recreation.gov. Where a field says "not published," the agency has not published it — it does not mean zero.
Recreation.govChecked 2026-08-05
Make Cottonwood Campground part of the drive.
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Official Forest Service pageCottonwood Campground
A stay at the Cottonwood Campground enables guests to enjoy all the beauty and recreation offered around the Middle Fork Boise River and Arrowrock Reservoir. This tiny campground hosts 3 campsites. Weather is usually good from mid-May through late September and is easily accessible by car in good weather, although the road is sometimes rough and the drive can be seemingly long. Checking with the Mountain Ranger District, 208-587-7961, on road conditions before heading out is recommended. Natural Features: The campground is situated just north of the reservoir along Cottonwood Creek. There is at a switchback of Forest Service (FS) roads 268 and 377. It is located less than a mile along FS road 377. Wildlife watchers may want to look for deer and elk. Waterfowl, eagles and osprey are attracted to the river. Recreation: Cottonwood Trail begins nearby, leading to Bald Mountain. Arrowrock Reservoir is a premier fishing destination in southwest Idaho. It offers excellent trout fishing for rainbow and cutthroat trout. There are also good swimming holes. Big game hunting is a popular activity in season. The Middle Fork Boise River is just north of the campground and also offers great fishing.
Before you go
Season
End of May – End of September
Reservations
First-come, first-served
Scenic drives that pass close
Make it a night on a better road
Byway plans the drive in — real stops, real weather, nothing invented.