Cottonwood Campground
1Heads up1 fire 43 mi away
This is how it should work.
- Right now
- Nobody has saidNo season, no closure, no bookings to read
The place
the agency’s own description · what’s there
In the agency’s own words
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. Keep reading
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.
Around the campground
- On the water
- Reservoir, River, Creek
Nothing to book, just show up
One of 1,623 federal campgrounds where the site still goes to whoever pulls in first. Get there before noon on a summer weekend.
recreation.gov publishes no availability for a campground you can’t reserve, so there’s no thirty-night reading to draw here. The season bar above is what the agency does publish.
Every line of the receipt · 3
What you actually pay
How we know this receipt · 4
record Aug 24, 2026 · How we know all this
Getting there
the map and the coordinate
Where it is
Macks Creek Campground5.9 miBadger Creek CampgroundBoise National Forest · 6.1 miBald Mountain CampgroundBoise National Forest · 9.0 miTroutdale CampgroundBoise National Forest · 12 miGrayback Campground and Group sites - reserveBoise National Forest · 12 miThe weather
the next four days · the thirty-year normal
Next four days, and the thirty-year normal
Forecast
NWS forecast for Robie Creek, ID
Typical weather
Typical October night 28°F, day 62°F.
Coldest month of the year: typical January night 14°F, below freezing. Bring a bag rated colder than that, and expect ice in the water bottle.
Daily high and lowDays with 0.10 in or more
A normal is the 1991-2020 average for the month, not a forecast: about half of all Julys are colder than the July line. The seven-day forecast above answers the other question.
The land, and who answers for it
what threatens it · who answers for it
What threatens this place
You’re camping on ground somebody wants. We track the threats and the comment deadlines.
Who answers for this land

Cottonwood Campground is in Idaho’s 1st congressional district. Its representative, Russ Fulcher (R), votes on the laws that decide what happens to this land. Public-lands grade so far: F. See every public-lands vote →