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Twelve Mile Flat

Manti-La Sal National Forest — lakeside, hiking

Location: FERRON, UT, UT

Price: From $7 per night

Price range: $7–$40 per night

Rating: 3.5 out of 5 (20 reviews)

Season: May through October

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.

Cell coverage (FCC estimate): none signal. Actual signal may vary in remote areas.

Amenities: Fire Rings, Picnic Tables, Vault Toilets

Availability alerts: Set a free cancellation alert at camperwatch.org/campground/twelve-mile-flat to be notified when sites open up.

Located in an open, wildflower-filled meadow beneath Mt. Baldy on the Wasatch Plateau with abundant ATV trails and short access to Ferron Reservoir for fishing and canoeing. Campers consistently praise it as beautiful, quiet, and remote with no cell service.

Wildlife alert: Uinta Ground Squirrel, American Beaver, Mountain Bluebird, Townsend's Solitaire, Mountain Chickadee, Ruffed Grouse, and Wandering Garter Snake documented within 8km.

Insider tips for Twelve Mile Flat: Book early—this is a federal campground with high demand. Site 14 is recommended for tents according to camper feedback. Road has significant washboard conditions; expect a rough final stretch on Forest Development Road 22.

Skip Twelve Mile Flat if: You need RV hookups—none available; only suitable for self-contained RVs.. You require water access—vault toilets only, no water.. You need cell service—area has no coverage.. You prefer sites with distance between neighbors—sites are close together..

Best time to visit Twelve Mile Flat: May-October — Official operating season; wildflowers present during peak months..

Nearby campgrounds: Indian Creek Guard Station (Ferron, UT), Ferron Reservoir (FERRON , UT), Willow Lake (FERRON, UT), Twin Lake Campground (Ephraim, UT).

Cell Phone Coverage at Twelve Mile Flat

Cell signal at Twelve Mile Flat (FERRON, UT): none overall signal based on FCC broadband data.

    Coverage data source: FCC Broadband Data Collection (BDC). Actual signal may vary due to terrain, tree cover, and distance from towers. Camper reports are more reliable than coverage maps in remote areas.

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    CamperWatch›UT›Twelve Mile Flat
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    Manti-La Sal National Forest — lakeside, hikingLive availability via Recreation.gov· synced every 30 min

    Twelve Mile Flat

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    FERRON, UT, UT★ 3.5 (20 reviews)From $7/nightFederal campground · book on Recreation.gov
    On this page ↓OverviewConditionsPlan Your TripCommunity

    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.

    Best for:HikersWildlife watchersFamiliesSites:TentRV
    LIVE · weather + fire + AQI + availability + wildlife

    Verified facts

    RIDB / Recreation.gov official database
    Check-in2:00 PM
    Check-out12:00 PM
    SeasonMay through October
    Stay limit14 days
    Max RV35 ft
    HookupsNo hookups. Suitable for self-contained RVs.
    Pull-throughsAvailable
    ToiletsVault toilets
    PetsAllowed
    CampfiresAllowed
    Max/site6 people

    Amenities

    RIDB /facilities /campsites · owner-verified
    Essentials
    Fire Rings
    Recreation
    Picnic Tables
    Family & Pets
    Vault Toilets

    Straight talk

    CamperWatch intel · curated from camper reports

    Known issues, each with the workaround. Read before you book.

    Known issuesFederal campground — book early. No hookups at most sites. Seasonal operations.
    Skip it if:✕ You need RV hookups—none available; only suitable for self-contained RVs.✕ You require water access—vault toilets only, no water.✕ You need cell service—area has no coverage.✕ You prefer sites with distance between neighbors—sites are close together.

    Insider tips & when to go

    CamperWatch intel · hand-curated entry

    Book early

    this is a federal campground with high demand.

    Site 14 is recommended for tents according to camper feedback.

    Road has significant washboard conditions; expect a rough final stretch on Forest Development Road 22.

    Best: May-October

    Official operating season; wildflowers present during peak months.

    Things to do nearby

    RIDB /activities /recareas + intel

    Conditions today

    Live
    at campground coordinates

    Cell signal

    FCC BDC · quarterly dataset
    T-Mobile
    4G · 0%
    Verizon
    4G · 0%
    AT&T
    4G · 0%

    FCC maps are theoretical — camper reports confirm signal.

    Wildlife nearby

    iNaturalist · research-grade · 8 km
    Alert: Uinta Ground Squirrel, American Beaver, Mountain Bluebird, Townsend's Solitaire, Mountain Chickadee, Ruffed Grouse, and Wandering Garter Snake documented within 8km.

    Location

    Leaflet · OpenStreetMap tiles
    Open in OpenStreetMap ↗
    435-384-2372· Manti-La Sal National Forest
    Getting there →

    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.

    Campground entrance

    Google Maps API

    Community

    #community · posts, photos & Q&A · AI-moderated (Claude Vision)

    Pro tips

    • Book on recreation.gov exactly 6 months ahead at 10am ET — Manti-La Sal National Forest fills fast in peak season.
    • Check current road conditions at Manti-La Sal National Forest before arrival — seasonal closures common.

    Frequently asked questions

    RIDB facts + intel · FAQPage schema, speakable
    How much does Twelve Mile Flat cost per night?+
    Twelve Mile Flat costs $7–$40 per night. Hookup options: No hookups. Suitable for self-contained RVs.
    What season is Twelve Mile Flat open?+
    Twelve Mile Flat is open May through October. Check-in is 2:00 PM, check-out is 12:00 PM.
    Does Twelve Mile Flat have hookups?+
    No hookups. Suitable for self-contained RVs.
    What is the maximum RV length at Twelve Mile Flat?+
    Twelve Mile Flat can accommodate RVs up to 35 feet.
    How do I make reservations at Twelve Mile Flat?+
    Twelve Mile Flat is a federal campground — book 6 months ahead at Recreation.gov. Set a free CamperWatch cancellation alert to be notified the moment a site opens.
    What is the cell service like at Twelve Mile Flat?+
    According to FCC coverage maps, cell signal at Twelve Mile Flat is rated none. FCC maps show theoretical coverage — actual signal in remote or heavily forested areas may be weaker.
    What season is Twelve Mile Flat open, and what are check-in times?+
    Twelve Mile Flat is open May through October. Check-in is 2:00 PM, check-out is 12:00 PM.
    Compare campgroundsPlan a multi-stop trip
    ●Data sources on this page
    Recreation.gov — Live site availability — updated every 30 min
    recreation.gov · RIDB API
    National Weather Service — Live hourly forecast + active alerts
    api.weather.gov · open-meteo.com
    Google Air Quality API — Live AQI at exact campground coordinates
    airquality.googleapis.com
    iNaturalist — Research-grade wildlife within 8km
    api.inaturalist.org
    Google Pollen API — Today’s tree, grass & weed pollen forecast
    pollen.googleapis.com
    FCC Broadband Map — Verizon, AT&T, T-Mobile 4G/5G coverage data
    broadbandmap.fcc.gov · quarterly
    Sunrise-Sunset.org — Sunrise, sunset & golden hour for today
    api.sunrise-sunset.org
    Google Street View — Campground entrance & access road imagery
    maps.googleapis.com
    RIDB — ADA sites, hookups, toilets, pets, campfire rules, bear boxes, max RV, activities, contact, directions
    ridb.recreation.gov · /facilities /campsites /activities /links /recareas

    CamperWatch never fabricates data. Where data is unavailable, it is not shown.

    $7 /night★ 3.5 (20)
    SeasonMay through October
    Check-in2:00 PM
    Check-out12:00 PM
    Reserve on Recreation.gov ↗
    Dates full? Get an availability alert
    FAQ
    How much does Twelve Mile Flat cost per night?+
    What season is Twelve Mile Flat open?+
    Does Twelve Mile Flat have hookups?+
    All 7 questions →

    Nearby Campgrounds

    Indian Creek Guard Station

    Ferron, UT

    From $50/night

    Ferron Reservoir

    FERRON , UT

    From $10/night

    Willow Lake

    FERRON, UT

    From $7/night

    Twin Lake Campground

    Ephraim, UT

    From $10/night

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    $7–40 /nightNo booking fees
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