U.S. Forest Service · San Gabriel Mountains National Monument · CA

Horse Flat Campground

5Heads up5 fires, nearest 5 mi
Wildfire
Report Of Smoke fire · 5.2 mi away · 0 acres · updated Oct 17, 2026
Wildfire
Lac-373293 fire · 12 mi away · updated Oct 16, 2026
Wildfire
Lac-373787 fire · 14 mi away · updated Oct 16, 2026
Wildfire
Peak fire · 15 mi away · updated Oct 15, 2026
Wildfire
Lac-373835 fire · 16 mi away · updated Oct 16, 2026
First come, first servedNo reservation, and none to be had: the sites go to whoever pulls in first.

This is how it should work.

Right now
Nobody has saidNo season, no closure, no bookings to read
A night
$12From, per site
Drawn from the record · 5,640 ft · 0% tree cover · Bortle 5 sky
5,640 ftElevation
1.2 miWater · an unnamed pond
9.9 miSE of Acton, CA
0%Tree cover
Bortle 5Night sky · 1176th darkest of 1,201 in CA

The place

the agency’s own description · what’s there

In the agency’s own words

General Camping Info : Find helpful guidance and tips for an enjoyable trip to the forest! Know Fire & Other Restrictions Before You Go! : These conditions can affect your entire trip. For example, Extreme and Critical fire use restrictions mean no campfires and no portable cooking systems/stoves. Bring cold food and no S'mores. Be Bear Aware! : Bear safety is critical, for the safety of your group and/or you, as well as our bears. Help keep bears wild by following these tips. Overview: Horse Flats Campground offers 26 campsites with plentiful shade options. Keep reading

It also has accessible hiking opportunities such as the Silver Moccasin National Recreation Trail, some excellent areas for mountain bikers, and, as the name implies, equestrian resources that include four corrals and several more hitching posts. Elevation: 5,600 feet Amenities: A total of 26 campsites with picnic tables and campfire rings. Vault toilets. No water available. Bouldering: Rock climbing is a 1-mile hike to the top of Mt. Hillyer. Hiking: The Silver Moccasin Trail is just a short walk away at thesouthwest side of the campground. Horse Corrals: There are 4 horse corrals and several hitching posts located at the west side of the campground. Fees: Camping Fees - $12 per night per site, $5 for extra vehicle. Campsites are first come - first served only. There is no way to reserve a campsite in advance. Day-Use Fees - Same as the camping fee. A Forest Service Adventure Pass or Interagency Pass is required for vehicles parked outside the campground RVs: Maximum RV length is 20 feet. No hook-ups available.

Source: USFS Enterprise Data Warehouse · Aug 24, 2026

Facilities

Toilets
Vault Toilets
“…with picnic tables and campfire rings. Vault toilets. No water available. Bouldering: Rock climbing is a…”
Drinking water
None, bring your own
“…and campfire rings. Vault toilets. No water available. Bouldering: Rock climbing is a 1-mile…”
Source: read from the agency description, shown above · Sep 12, 2026

Nothing to book, just show up

One of 1,623 federal campgrounds where the site still goes to whoever pulls in first, and a night costs $12 with nothing added. 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.

BookingNo reservationsNothing to book, and no release date to wait forthe record
A night$12Per site, fromthe agency’s fee record
A weekend$24DerivedFriday and Saturday, everything includedours, from the lines above
Runs itU.S. Forest Servicethe agency’s record
Every line of the receipt · 8

What you actually pay

The sign priceU.S. Forest Service
A night, from$12
Day use - $5 per vehicle.
Adventure Pass/Interagency Pass will be honored for day use.
Adventure Pass/Interagency Pass required for vehicles parked outside the campground $12 per night
The booking feerecreation.gov
Nothing. This campground takes no bookings, so there’s no reservation fee to pay.
What this campground addsits own record
Extra vehicleSee the note

“Camping - $12 per night per site, $5 for extra vehicle.” · the U.S. Forest Service’s own fee record

What a stay costs
One night, fromDerived$12
A weekend, Friday and Saturday, fromDerived$24

Derived by CAMPANAC: the lowest per-night amount the agency’s fee record states ($12), 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 · 6
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

The weather

the thirty-year normal

Next four days, and the thirty-year normal

Typical weather

Typical October night 51°F, day 72°F.

Coldest month of the year: typical February night 37°F. Bring the bag rated for it.

90°30°

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 Augusts are colder than the August line. The seven-day forecast above answers the other question.

Measured at: MT WILSON CBS, CA (USC00046006), 9 miles away and 70 ft higher

The land, and who answers for it

what threatens it · who answers for it

What threatens this place

Roadless
West Fork1,169 acres · 7 mi · inventoried roadless area
Roadless
Strawberry Peak7,245 acres · 8 mi · inventoried roadless area
Roadless
Westfork4,407 acres · 9 mi · inventoried roadless area

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

Source: MTJP Threatened Lands map · Sep 30, 2026

Who answers for this land

Judy Chu, official portrait

Horse Flat Campground is in California’s 28th congressional district. Its representative, Judy Chu (D), votes on the laws that decide what happens to this land. Public-lands grade so far: A. See every public-lands vote →

Seen something wrong here? Tell us.

How we know

every fact on this page, and where it came from
Right now: U.S. Forest Service publishes no season and no closure for this campground, and it takes no bookings we can read. That’s a gap in the record and not a locked gate.
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.