Boulder Basin

Campground · California · 16 bookable sites ·

Managed by the USDA Forest Service

San Bernardino National Forest (NF) · Open Access

16
Bookable sites
20 ft
Max rig length
up to 8
People per site
7,534 ft
Elevation
View of Boulder Basin Campground with campground sign.

Overview

Black Mountain Road is is poor condition at this time. A four-wheel drive (4WD) vehicle is recommended with a minimum ground clearance of 6 inches. Drive at your own risk.

The San Bernardino National Forest is submitting a proposal to increase fees at various sites across the Forest and is seeking public input. Please visit the https://www.fs.usda.gov/sbnf for more information and to submit comments regarding this proposal.

Boulder Basin Campground offers solitude and primitive camping in a scenic mountain landscape. The area provides ample recreational opportunities, including hiking, mountain biking, boulder climbing and more. Black Mountain Road, which accesses Boulder Basin Campground, is a narrow rough dirt road which may not be suitable for all vehicles.

Recreation

The campground provides access to a number of trailheads, including the Black Mountain Trail, a 3.6-mile, moderately strenuous hiking, mountain biking and horseback riding trail that travels through the forested slopes of Black Mountain.

The trail provides excellent views of the Banning Pass and Mt. San Gorgonio. The trail provides access to the famed Pacific Crest National Scenic Trail, which begins at the Mexico border in Southern California and leads to Washington border of Canada.

Facilities

The campground offers multiple single-family campsites, available for tent and small RV / van camping. Each site is equipped with tables and campfire rings with grills. Vault toilets are also provided.

Natural Features

The campground is located in a mixed conifer forest, which provides ample shade throughout the day. It is situated at an elevation of about 7,300 feet. Roads to the campground are not paved but the campground does have paved roads.

Nearby Attractions

This group site is located approximately 50 miles southeast of San Bernardino, California, and 14 miles north of Idyllwild, where fuel and a variety of small town shops and restaurants are available.

The facts

  • 16 bookable sites
  • 37 sites in total, including non-bookable
  • Vehicles up to 20 ft
  • Up to 8 people per site
  • Loops: AREA BOULDER BASIN, BOUL, S&P

Site types

  • 21 Management
  • 9 Tent Only Nonelectric
  • 7 Standard Nonelectric

Amenities

  • Fire pits
  • Picnic tables
  • Pets allowed
  • Water hookups — not available
  • Campfires allowed — not available

Not recorded upstream: electric hookups, sewer hookups, grills, shade.

Book on Recreation.gov

37 campsites at Boulder Basin

SiteLoopTypeEntrySurfaceMax rigPeople
020AREA BOULDER BASINManagement————
021AREA BOULDER BASINManagement————
024AREA BOULDER BASINManagement————
031AREA BOULDER BASINManagement————
033AREA BOULDER BASINManagement————
034AREA BOULDER BASINManagement————
XXX1AREA BOULDER BASINManagement————
XXX10AREA BOULDER BASINManagement————
XXX11AREA BOULDER BASINManagement————
XXX12AREA BOULDER BASINManagement————
XXX14AREA BOULDER BASINManagement————
XXX15AREA BOULDER BASINManagement————
XXX16AREA BOULDER BASINManagement————
XXX18AREA BOULDER BASINManagement————
XXX19AREA BOULDER BASINManagement————
XXX2AREA BOULDER BASINManagement————
XXX4AREA BOULDER BASINManagement————
XXX6AREA BOULDER BASINManagement————
XXX7AREA BOULDER BASINManagement————
003BOULTent Only Nonelectric—Gravel—8 🐾
005BOULStandard NonelectricBack InGravel20 ft8 🐾
008BOULTent Only Nonelectric—Gravel—8 🐾
009BOULStandard NonelectricBack InGravel20 ft8 🐾
013BOULStandard NonelectricBack InGravel20 ft8 🐾
015BOULStandard NonelectricBack InGravel20 ft8 🐾
017BOULTent Only Nonelectric—Gravel—8 🐾
022BOULStandard NonelectricBack InGravel20 ft8 🐾
023BOULTent Only Nonelectric—Gravel—8 🐾
025BOULTent Only Nonelectric—Gravel—8 🐾
026BOULTent Only Nonelectric—Gravel—8 🐾
027BOULStandard NonelectricBack InGravel20 ft8 🐾
028BOULTent Only Nonelectric—Gravel—8 🐾
029BOULStandard NonelectricBack InGravel20 ft8 🐾
030BOULTent Only Nonelectric—Gravel—8 🐾
032BOULTent Only Nonelectric—Gravel—8 🐾
Scan & Pay StandardS&PManagement————
Scan & Pay TentS&PManagement————

Getting there

From Idyllwild, travel north for about 8 miles on State Route 243. Turn right onto Black Mountain Road/Forest Route 4S01 and continue about 5 miles to the campground. Black Mountain Road is an unpaved forest road, not recommended for low clearance vehicles or trailers.

33.82639, -116.75389 · 33°49'35.0"N 116°45'14.0"W

Directions (Google Maps) · Directions (Apple Maps)

Typical weather

Typically 86°F in Aug, down to 54°F in Dec.

JanFebMarAprMayJunJulAugSepOctNovDec
High °F555559647180858681726254
Low °F313032354148555550423530
Precip in4.75.33.31.70.70.10.50.60.81.21.93.6

1991–2020 averages from the nearest NOAA station, 5.5 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.

Map

More photos

Member photos

Common questions about Boulder Basin

Can you reserve a site at Boulder Basin?
Yes, Boulder Basin is reservable through Recreation.gov.
How many campsites does Boulder Basin have?
37 sites in total, of which 16 can be booked.
What is the maximum RV length at Boulder Basin?
20 ft. That is the longest vehicle the sites here are recorded as taking; individual sites may be shorter.
Are pets allowed at Boulder Basin?
Yes, pets are allowed at Boulder Basin.
Does Boulder Basin have hookups?
No hookups are recorded here.
Are campfires allowed at Boulder Basin?
Campfires are not allowed at Boulder Basin.

Also listed by

Boulder Basin also appears in other federal recreation data. Facts below are matched by name and location, not confirmed by Boulder Basin's operator.

USDA Forest Service — data as of Aug 24, 2026

  • $10 per night (incudes 1 vehicle) + $5 for each additional vehicle.

Restrictions:

  • A 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. Fir

USDA Forest Service's own page

Camping near Boulder Basin

Comments

Contact

Recreation.gov last updated this record on 2026-05-19.

Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.