U.S. Forest Service · San Bernardino National Forest · Idyllwild, CA

Fern Basin

The picturesque Fern Basin Campground is a perfect escape from a busy lifestyle. It provides peace and quiet in the mountains of southern California as well as access to countless recreational opportunities.

More like this: reservable in California · pets allowed in California

Check availability on Recreation.gov ↗
Roadway with Fern Basin Campground sign.Roadway with Fern Basin Campground sign.Picnic area with fire pit.Fern Basin
Photos via Recreation.gov

Site mix

Standard, no hookups15
Host/management8
Most sites here open on Recreation.gov six months ahead, at 10 a.m. Eastern. Sold out is not final: cancellations come back into the pool, most of them two to three days out. How to catch one

Site guide

Will my RV fit

The longest site here provides 20 feet of vehicle capacity. Most sites are shorter.

Have the trailer VIN? It carries the trailer length.

15 sites. Tap a filter to narrow the list; the map follows.

SiteEntryFits, ftSurfacePeople / vehiclesFires
004Back-in20Gravel8 / 1No
005Back-in20Gravel8 / 1No
006Back-in20Gravel8 / 1No
007Back-in20Gravel8 / 1No
008Back-in20Gravel8 / 1No
009Back-in20Gravel8 / 1No
010Back-in20Gravel8 / 1No
012Back-in20Gravel8 / 1No
013Back-in20Gravel8 / 1No
014Back-in20Gravel8 / 1No

Per-site records as published by the managing agency on Recreation.gov. Blank cells mean the agency listed nothing for that site. Check-in 2:00 PM, checkout 2:00 PM.

The site records list no campfires. The campground description says sites have campfire rings.

Amenities & rules

HookupsNone
Max vehicle length20 ft
EquipmentRVs & trailers, Tents
PetsAllowed

Please be aware that potable (safe for drinking) water may or may not be available at this campground. Please bring ample water for drinking, cooking etc. Fern Basin campground offers about two dozen campsites for both tent and small RV / van camping. All campsites are equipped with tables and campfire rings with grills. Vault toilets are available within the campground.

Individual sites vary. Confirm on Recreation.gov or with the managing office.

Season & status

StatusOpen
ForestSan Bernardino National Forest
BookingCall 1-877-444-6777 or www.recreation.gov. Reservations can be made as early as 6 months or as late as 3 days in advance.
Fees$10 per night (includes 1 vehicle) + $5 additional vehicle
RulesA site must be reserved for a minimum of 3 nights on major holidays. The fee allows for a maximum of 8 people per campsite and entry for 1 vehicle and 1 legally towed vehicle. Additional fees of $5 per extra vehicle will be collected at the campground. There are no refunds for inclement weather.

San Bernardino National Forest recreation page ↗

Weather by month

NOAA climate normals →
Weather by month near Fern Basin40°50°60°70°80°January: 4.74 inches of precipitation, 6.3 inches of snowFebruary: 5.35 inches of precipitation, 9.8 inches of snowMarch: 3.31 inches of precipitation, 4.1 inches of snowApril: 1.67 inches of precipitation, 3.5 inches of snowMay: 0.65 inches of precipitation, 0.5 inches of snowJune: 0.13 inches of precipitation, 0.0 inches of snowJuly: 0.47 inches of precipitation, 0.0 inches of snowAugust: 0.60 inches of precipitation, 0.0 inches of snowSeptember: 0.79 inches of precipitation, 0.0 inches of snowOctober: 1.17 inches of precipitation, 0.0 inches of snowNovember: 1.92 inches of precipitation, 2.3 inches of snowDecember: 3.65 inches of precipitation, 4.2 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 43.0°F averageFebruary: 42.5°F averageMarch: 45.6°F averageApril: 49.6°F averageMay: 55.9°F averageJune: 64.1°F averageJuly: 70.2°F averageAugust: 70.6°F averageSeptember: 65.4°F averageOctober: 56.8°F averageNovember: 48.3°F averageDecember: 42.2°F average0 in2 in4 in6 in8 in10 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Idyllwild Fire Dept, 3 miles from the campground at 5,380 feet, station USC00044211 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 24 inches a year. The dotted line is average snowfall, about 31 inches a year on the same inches scale.

Getting there

From Idyllwild, travel north on State Route 243 about 4 miles. Turn right at the campground sign and continue to Forest Service Road 4S02. Turn left and proceed less than a mile to an intersection. Continue straight on the Forest Service Road and turn left into the campground.

Nearest townIdyllwild, California
Coordinates33.7886° N, 116.7378° W · Directions ↗

Supplies & services

Outdoor gearNomad Ventures ↗3.3 mi
RV sales & serviceMountain Air Mobile Home Sales ↗14.3 mi
Dump stationDump station ↗25.3 mi

Locations © OpenStreetMap contributors. Call ahead; hours change seasonally.

Explore

Video

Fern Basin Campground - San Bernardino National Forest, CA

Worth a stop

The campground is located approximately 50 miles southeast of San Bernardino, California, and about seven miles north of the small town of Idyllwild, which is known for its shops and restaurants.

  • 0.2 mi
    Marion Mountain
    1.5 mi trail
  • 1.5 mi
    Seven Pines
    1.2 mi trail
  • 2.1 mi
    PCT Section 27 ↗
    5.2 mi trail · national_scenic_or_historic
  • 2.1 mi
    PCT Section 28 ↗
    2.1 mi trail · national_scenic_or_historic
  • 2.3 mi
    Suicide Rock
    0.7 mi trail
  • 2.3 mi
    Deer Springs
    1 mi trail

Trail and trailhead records are the Forest Service's. Distances are straight-line to the nearer trail end. Trail conditions are not tracked here.

Public land it sits in

On Wilderness Atlas →

San Bernardino National Forest begins about 2 miles away, and it is the closest of these.

Each unit is published as a centre point and an acreage rather than a boundary, so this section stands it in for a circle of the same area. Whether a campground is inside, and how far it is from one it is outside, are both approximate.

Natural features

The campground is located in a grove of mixed oaks and shrubs. A surrounding mixed conifer forest provides spotty shade for the campground. It is situated at an elevation of about 6,300 feet, in the mountains overlooking California's desert.

Recreation

Visitors to the area enjoy hiking on the Marion Mountain Trail, which leads to San Jacinto Peak. Views from the peak extend to the ocean and across the Palm Desert, as well as the San Bernardino and San Gabriel mountains on a clear day. The 11.8-mile Marion Mountain Trail is the shortest route up the mountain, but is also quite strenuous in areas.

Guidebooks for California

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Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

Do I need a reservation at Fern Basin?

Sites at Fern Basin are reservable on Recreation.gov. Call 1-877-444-6777 or www.recreation.gov. Any walk-up sites are listed on the booking page.

Source: Recreation.gov

How much does it cost to camp at Fern Basin?

$10 per night (includes 1 vehicle) + $5 additional vehicle

Source: Recreation.gov

What time is check-in at Fern Basin?

Check-in 0:00 AM, checkout 0:00 AM.

Source: Recreation.gov

Is Fern Basin open right now?

Open as of Oct 16, 2026.

Source: Forest Service status

How many sites does Fern Basin have?

23 sites, including 15 standard sites without power.

Source: Recreation.gov

Will my RV fit at Fern Basin?

The longest site here provides 20 feet of vehicle capacity. Most sites are shorter. The sidebar tool checks a trailer or motorhome length against every site.

Source: Will my RV fit

Are pets allowed at Fern Basin?

Yes, pets are allowed at Fern Basin. Leash rules apply.

Source: Recreation.gov

Is there cell service at Fern Basin?

FCC coverage maps show Verizon 4G LTE at the campground point. Terrain changes that from one site to the next.

Source: FCC Broadband Map

What is there to do at Fern Basin?

Visitors to the area enjoy hiking on the Marion Mountain Trail, which leads to San Jacinto Peak. The Recreation section on this page has the rest.

Source: Recreation

What is the nearest town to Fern Basin?

Idyllwild, California. The campground is located approximately 50 miles southeast of San Bernardino, California, and about seven miles north of the small town of Idyllwild, which is known for its shops and restaurants.

Source: Getting there

What if Fern Basin is full?

The nearest public campgrounds are Marion Mountain (0.4 mi, partly first-come), Dark Canyon Campground (1.1 mi, first-come), and Boulder Basin (2.8 mi).

Source: Campgrounds nearby