Miller Canyon Group Campground offers three seasonal group campsites (I, II, III) accommodating up to 40 people and 20 vehicles each, located 4 miles past the main park entrance in a secluded woodland setting.

Each site features large fire rings, charcoal grills, and access to public restroom facilities, though running water and shower facilities are not available on-site (campers can use showers at nearby New Mesa and Old Mesa campgrounds).

The campground operates seasonally from May 1st through September 30th and costs $250 per night, with reservations made through ReserveCalifornia. com.