Pick a site on the map to see its availability calendar.
Only 1 opening in the last 90 days: not enough recent activity for a reliable pattern. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
Of the 48 tracked site-nights (Sep 18 – Sep 20, 2026): 48 on sites not offered for online reservation (first-come, first-served or administrative). Of the facility's 16 monitored sites, 11 can be reserved online and 5 are first-come, first-served.
Of the 48 tracked site-nights (Sep 18 – Sep 20, 2026): 48 on sites not offered for online reservation (first-come, first-served or administrative).
No month in range currently shows online availability. 0 open site-nights across the tracked window — these site-nights are on sites not offered for online reservation.
| Window | Night | Sites open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open |
Labor Day: no online availability on any tracked night.
Twelve Mile Flat Campground is located beneath the shadow of Mt. Baldy near the top of the Wasatch Plateau in an open, wildflower-filled meadow surrounded by spruce and pines.
ATV trails are abundant in the area, providing exciting riding for all skill levels. Skyline Drive passes just above the campground.
A short, but steep drive over the ridge leads to Ferron Reservoir for canoeing and rainbow and cutthroat trout fishing.
The campground contains two group sites that can accommodate up to 50 people and eight vehicles each. Additional single-family sites are also available. Vault toilets are provided, but no garbage service. Roads and parking spurs are gravel.
The campground sits high on the Wasatch Plateau just below the ridgeline and west of Skyline Drive at an elevation of 10,120 feet. Mature spruce and pine trees dot the open landscape, providing partial shade in the campground. Wildlife and summer wildflowers are plentiful, and autumn leaves put on a spectacular show in the surrounding area.
Skyline Drive runs along the top of the Wasatch Plateau for 60 plus miles, rewarding visitors with beautiful mountain scenery, glacial cirques, spruce-fir forests, aspen forests and numerous lakes and reservoirs.
Travel east up Twelve Mile Canyon on Forest Development Road 22 for approximately 20 miles, or travel west up Ferron Canyon on Forest Development Road 22 for 31 miles.
View on Recreation.gov ↗ Get directions ↗












Campsite Sniper's current snapshot shows none of the 48 tracked site-nights open for online reservation at Twelve Mile Flat. That can mean dates are reserved, closed, not yet released, or offered first-come, first-served rather than online. Campsite Sniper has also detected 1 site opening here in the last 90 days, so further dates may appear. Pick a site on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 15:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
Campsite Sniper detected 1 site-date opening here over the last 90 days, none in the last 7. A free alert watches around the clock and pings you the moment one appears.
4 of the 15 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 55 ft.
As of the Sep 18, 2026 snapshot, none of the 48 tracked site-nights are open for online reservation. That can mean dates are reserved, closed, not yet released, or offered first-come, first-served rather than online. A free Campsite Sniper alert tells you if any date opens online.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We run paced availability checks for Twelve Mile Flat. One watch covers every matching online-reservable site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.
Alerts monitor online-reservable inventory only; first-come, first-served sites are not included.