Big Rock Campground
5Heads up5 fires, nearest 18 mi
This is how it should work.
- Right now
- Nobody has saidNo season, no closure, no bookings to read
The place
the agency’s own description · what’s there
In the agency’s own words
ROAD CLOSED- Hike-in only 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. Keep reading
Overview of Site (Under Normal Circumstances): Big Rock Campground is open year-round and can be accessed from Forest Service Road 4N11. 4N11 is closed seasonally from beginning of May to mid-November. During winter months, when Forest Service Road 4N11 is closed, you must hike in 1/8th mile from gate. Amenities: Eight campsites with one designated picnic table and campfire ring. Vault toilets. Trash receptacles. No water available. (Please bring enough water for cooking, cleaning, drinking, and extinguishing campfires.)
Facilities
- Toilets
- Vault Toilets
- “…picnic table and campfire ring. Vault toilets. Trash receptacles. No water available. (Please…”
- Drinking water
- None, bring your own
- “…ring. Vault toilets. Trash receptacles. No water available. (Please bring enough water for cooking,…”
Nothing to book, just show up
One of 1,623 federal campgrounds where the site still goes to whoever pulls in first. 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.
Every line of the receipt · 5
What you actually pay
How we know this receipt · 4
record Aug 24, 2026 · How we know all this
Getting there
the map and the coordinate
Where it is
Jackson FlatsSan Gabriel Mountains National Monument · 2.3 miJackson Flat Group CampgroundSan Gabriel Mountains National Monument · 2.3 miSouthfork CampgroundSan Gabriel Mountains National Monument · 2.6 mi
Mountain OakSan Gabriel Mountains National Monument · 2.8 mi
Lake CampgroundSan Gabriel Mountains National Monument · 3.1 miSycamore Flat CampgroundSan Gabriel Mountains National Monument · 3.3 miThe weather
the next four days · the thirty-year normal
Next four days, and the thirty-year normal
Forecast
NWS forecast for Piñon Hills, CA
Typical weather
Typical October night 37°F, day 64°F.
Coldest month of the year: typical December night 25°F, below freezing. Bring a bag rated colder than that, and expect ice in the water bottle.
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 Julys are colder than the July line. The seven-day forecast above answers the other question.
The land, and who answers for it
what threatens it · who answers for it
What threatens this place
You’re camping on ground somebody wants. We track the threats and the comment deadlines.
Who answers for this land
Big Rock 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 →