CAMPANAC.Powered by public lands intelligenceMore Than Just Parks
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U.S. Forest Service · Sawtooth National Forest · ID

Mill Flat Campground

The agency doesn’t say how you get a siteIts record carries no access type, so treat it as a place to phone before you drive.
Get directionsWhat it costs, and the rules
Right now
OpenInside the published season, our reading
A night
FreeNo camping fee
Season
June 1Opens June 1. No closing date published.
Drawn from the record · 5,990 ft · 45% tree cover · Bortle 2 sky
5,990 ftElevation
2.1 miWater · Indian Fork
24.7 miSW of American Falls, ID
45%Tree cover
Bortle 2Night sky · 351st darkest of 523 in ID
Opens June 1. No closing date published.Today

The place

the agency’s own description · what’s there

In the agency’s own words

Mill Flat Campground is a developed campground composed of 7 individual units located in an open setting within a canyon. This is a non-fee campground and picnic area where reservations are not required. This area is accessible for a season that varies usually between June through October. Campground amenities include restrooms. The campground is well suited for trailer and tent camping. Visitors can fish for trout in the stream and explore the mountains canyon by canyon on the extensive trail system.

Source: USFS Enterprise Data Warehouse · Aug 24, 2026

Facilities

Toilets
Yes, the record doesn't say what kind
“Campground amenities include restrooms.”
Source: read from the agency description, shown above · Sep 12, 2026

Around the campground

On the water
Creek
Source: Stated in the agency description

Phone before you drive

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.

Booking window6 months outBooking opens 6 months ahead; today unlocks arrivals through April 16, 2027. The agency publishes no reservable season in the record we hold, so the window may close earlier than that.recreation.gov
A nightFreeNo camping feethe agency’s fee record
A weekendNothingDerivedFriday and Saturday, everything includedours, from the lines above
Runs itU.S. Forest Servicethe agency’s record
Directions
Every line of the receipt · 4

What you actually pay

The sign priceU.S. Forest Service
Camping feeFree
No Fee
The booking feerecreation.gov
We hold no recreation.gov booking record for this campground, so we can’t say whether a booking fee applies.
What a stay costs
A night, and a whole weekendDerivedNothing

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
Sign price: Derived by CAMPANAC from the U.S. Forest Service fee record: a stated per-night amount only · Sep 7, 2026
Booking fee, change fee, cancellation fee, no-show: Rules and Reservation Policies, Recreation.gov, the published fee schedule, curated by hand into lib/reservation-fee-schedule.json (9 rows, each carrying its own verbatim sentence). The publisher states these policies were last updated September 2019. · Sep 9, 2026
The two totals: Derived by CAMPANAC by adding the agency’s own published nightly rate to recreation.gov’s own published reservation fee. Both components are cited above; the addition is ours and is shown only where every component is known. · Sep 9, 2026
Who keeps the booking fee: Recreation.gov facility policy text, Dead Swede Campground (facility 234221) · Not on the national policy page. This is agency policy text recreation.gov publishes on individual campground pages; this site holds it verbatim on 45 active campgrounds (campground_rules.cancellation_description, scripts/load-facility-rules.mjs). · Sep 9, 2026
The contract: Reservation Gods: Who Stole Our Campsites and Sold Them Back to Us, More Than Just Parks, April 2025 · Apr 1, 2025
Source: USFS Enterprise Data Warehouse · Aug 24, 2026

record Aug 24, 2026 · How we know all this

Seen something wrong here? Tell us.

Getting there

the map and the coordinate
Coordinate42.43001, -113.01382

Where it is

Source: USFS Enterprise Data Warehouse · Aug 24, 2026

The weather

the next four days · the thirty-year normal

Next four days, and the thirty-year normal

Forecast

This Afternoon59°Sunny
Tonight40°Mostly Clear
Saturday60°Sunny
Saturday Night40°Mostly Clear

NWS forecast for Rockland, ID

Source: National Weather Service, PIH forecast office · Oct 16, 2026

Typical weather

Typical June night 50°F, day 75°F.

90°32°10°

Daily high and lowDays with 0.10 in or moreOutside the published season

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.

Measured at: ROSETTE, UT (USC00427408), 47 miles away and 305 ft lower
Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020, monthly normals · Sep 8, 2026

The land, and who answers for it

what threatens it · who answers for it

Roadless country, and what’s coming for it

Roadless
Sublett7,113 acres · 2 mi · inventoried roadless area

You’re camping on ground somebody wants. We track the threats and the comment deadlines.

Source: USFS Inventoried Roadless Areas via MTJP Roadless Map · Jul 29, 2026

Who answers for this land

Mike Simpson, official portrait

Mill Flat 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 →

Seen something wrong here? Tell us.

Source: U.S. Census district boundaries and the MTJP Congressional Public Lands Score

How we know

every fact on this page, and where it came from
Right now: Today falls inside the season the agency publishes, and it has posted nothing else. That reading is ours.
Season: USFS Enterprise Data Warehouse · Aug 24, 2026
Elevation: USGS 3DEP elevation point query at this campground’s coordinate · Sep 7, 2026
Night sky: VIIRS Day/Night Band annual cloud-free composite, VNL V2 2024 (Earth Observation Group, Colorado School of Mines), read at the published coordinate: 0.071 mcd/m² of artificial all-sky glow, ranked against the 523 rated federal campgrounds in Idaho · Sep 8, 2026
Sky-glow model: Duriscoe, Anderson, Luginbuhl and Baugh (2018), a simplified model of all-sky artificial sky glow derived from VIIRS Day/Night band data, the National Park Service sky-glow model
Cell signal: the Forest Service’s own campground description, read as text by CAMPANAC. None of this is a measurement. It’s what the land manager published about the place, and phones, carriers and weather all disagree with each other; treat it as a warning, not a promise.
Nearest place of any size: Rockland, ID, 11.9 mi SW. Straight line.
Nearest town: U.S. Census Bureau TIGER/Line 2024 places, measured by CAMPANAC to the town boundary; population is the ACS 2020-2024 5-year estimate · Sep 9, 2026