3.9418 reviewsPrice
Free
Booking
First-Come
Sites
11 campsites
Season
The campground is op...
Cell
Unknown
Pets
Check Policy
Price
Free
Booking
First-Come
Sites
11 campsites
Season
The campground is op...
Cell
Unknown
Pets
Check Policy
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Learn more about alerts →Mosquito Flat Reservoir Campground
44.5179, -114.4336
Tent campers and anglers who bring their own water will get the most out of this place. The shoreline section puts you right on the reservoir for fly fishing or float tube sessions, and the wooded second section offers genuine quiet. Free and first-come means arriving early on su
Trailers over 24 feet face a creek crossing with a steep uphill right after it, and at least one camper dragged their rig. No potable water on-site means a 30-40 minute round trip to Challis if you run short, which adds up fast on a multi-day stay.
Reference information about Mosquito Flat Reservoir Campground sourced from official USFS records and forestcamping.com. View official recreation.gov page →
<p>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.</p><p>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; </p>
The elevation is 7,180 ft. The campground, located above and alongside the Mosquito Flat Reservoir, is comprised of three unnamed sections. The first section, overlooking the reservoir with views of the mountains, has five camp sites. The second section is below and across the road on the left with four camp sites and is the most heavily wooded. The third section is 0.1 miles below the first two sections along the shore of the reservoir and has two camp sites. Both sites are in the open and have views of the reservoir and surrounding mountains. Lodgepole pines dominate the campground with grass understory and it is pack it in, pack it out. This is an attractive campground with access to it via the Custer Motorway with interpretive signs along the way. Challis National Forest 223
Open June 1 through October 15
Mosquito Flat Reservoir is 25 acres. Hiking: None Fishing: Rainbow trout Challis National Forest 224
Mosquito Flat Reservoir is 25 acres.
The parking aprons are gravel. Travel trailers are not recommended in the third section. An RV waste station with no potable water is available for a fee in Challis, ID at the Cenex gas station. Another waste station with potable water is available for no fee at Land of the Yankee Fork Interpretive Center, just south of Challis at intersection of State Rt. 75 and US Rt. 93.
In Chalis, ID, at the intersection of State Rt. 75 and Main St., take Main St. west 5.1 miles to the pavement's end at a "Y" intersection (Custer Motorway). Bear right onto Custer Motorway (dirt) and go 8.3 miles to "Mosquito Flat Res" sign. Turn right at sign and go 3.5 miles to "Challis Cr Lakes" sign (Forest Rt. 091). Turn left at sign and go 0.1 miles to campground.
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Summer delivers the most reliable access and warmest weather. Daytime highs run mid-60s to mid-70s, nights drop into the 30s and 40s. June through October is the typical season. Wildflowers peak in early summer, trails are clear, and the reservoir is accessible for fishing and boating. Afternoon thunderstorms roll through, and fire restrictions can kick in. Pack warm layers. This elevation means spring comes late and winter arrives early.
June–Oct is peak season; reliable access and mild daytime temps make summer best.
There are vault toilets on site, but no drinking water or garbage services within the site.
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