Mosquito Flat Reservoir Campground
This is how it should work.
- Right now
- Nobody has saidNo season, no closure, no bookings to read
- A night
- FreeNo camping fee
The place
the agency’s own description · what’s there
In the agency’s own words
This recreation site has 11 campsites and a day use picnic area along the shore of Mosquito Flat Reservoir near Challis. Nearby, the Yankee Fork Trail (#147) provides access to the Frank Church River of No Return Wilderness. Each campsite is equipped with picnic tables and fire rings. The campground accommodates motorhomes and trailers up to 32-foot long. There are vault toilets on site, but no drinking water or garbage services within the site. Fish Your National Forests: This site can be accessed by Passenger Car; Fish available include: Trout; Types of fishing available include: Wade, Shore, Float tube, Fly, Spin, Bait;
Facilities
- Toilets
- Vault Toilets
- “…trailers up to 32-foot long. There are vault toilets on site, but no drinking water or garbage services…”
- Drinking water
- None, bring your own
- “…There are vault toilets on site, but no drinking water or garbage services within the site. Fish Your…”
Around the campground
- On the water
- Reservoir, River
Nothing to book, just show up
One of 1,623 federal campgrounds where the site still goes to whoever pulls in first, and it costs nothing at all. 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 · 4
What you actually pay
Derived by CAMPANAC: the agency’s own record says there’s no camping fee, and no booking fee, because this campground takes no reservations. A weekend here means Friday and Saturday night. Optional charges (an extra vehicle, a second tent, a dump-station fee) are listed separately and aren’t in this total.
How we know this receipt · 5
record Aug 24, 2026 · How we know all this
Getting there
the map and the coordinate
Where it is
Bonanza CCC Group CampgroundChallis National Forest · 18 miWhiskey Flat CampgroundChallis National Forest · 19 miHolman Creek CampgroundChallis National Forest · 19 miThe weather
the next four days · the thirty-year normal
Next four days, and the thirty-year normal
Forecast
NWS forecast for Challis, ID
Typical weather
Typical October night 24°F, day 55°F.
Coldest month of the year: typical January night 4°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
Roadless country, and what’s coming for it
You’re camping on ground somebody wants. We track the threats and the comment deadlines.
Who answers for this land

Mosquito Flat Reservoir Campground is in Idaho’s 2nd congressional district. Its representative, Mike Simpson (R), votes on the laws that decide what happens to this land. Public-lands grade so far: F. See every public-lands vote →