Camping in Idyllwild The Forest Service manages a variety of developed and remote campgrounds and camping areas. There are six developed campgrounds maintained in the San Jacinto District of the San Bernadino National Forest. They all have stoves, tables, piped water and vault toilets. Trailer and recreational vehicle hookups are not available. Marion Mountain and Fern Basin sites can accommodate R.V.s up to 15 feet in length, and Dark Canyon up to 22 feet.
Campsites are limited and half are available on a first-come basis and half by reservation.
Boulder Basin Campground , about 15 miles north of Idyllwild off Black Mountain Road, at an elevation of about 7,800 feet, has 34 sites. Half of the campsites are available on a first-come basis and half by reservation. Trailers are not recommended. Black Mountain Group camp, beyond Boulder Basin Campground at about 7,500-foot elevation, has two sites available for groups of 15 to 50. Pinyon Flats Campground , on Hwy.