The visitor population is held down both to protect the environment and to ensure that the trekker can enjoy the mountains and Forest at its most pristine. No vehicle traffic, including bicycles, is allowed. On summer weekends, some Wilderness areas fill to capacity. Wilderness Permits are required and may be reserved up to three months in advance. Permits are issued in person, by mail or by fax.
Group size is limited to twelve people per permit.
Permits are issued through the mail or in person. Lightweight stoves are recommended. Campfires are not currently permitted in the San Gorgonio, Santa Rosa, or Cucamonga Wilderness Areas. Woodfires are permitted at a few designated sites in the San Jacinto Wilderness. Check with the Ranger Station.