Obsidian Flat Group Campground

Area Status: Closed

Obsidian Flat Group Campground, located near Mammoth Lakes, California, provides an opportunity for a group to enjoy a secluded getaway in the eastern Sierra Nevada Mountains. With a peaceful forested setting and mountain views, the campground's location is perfect for relaxing and spending time in nature.

The area is popular for exploring the surrounding forest and geology, as well as nearby hiking, fishing and off-road vehicle riding options.
Elevation 7800 feet. One large group site can accommodate up to 50 people. Site will accommodate a 40 foot vehicle. No drinking water available. Pit toilets available. 14 day stay limit. Bear locker available.

At a Glance

Reservations: This site can be reserved on-line at www.recreation.gov or by calling Toll Free 1-877-444-6777 (International 518-885-3639 or TDD 877-833-6777) or
Fees: $20 per night.
Open Season: Mid May - September
Usage: Heavy
Closest Towns: June Lake, CA
Water: No
Restroom: Vault Toilet (1)
Operated By: Forest Service

General Information


From US 395 and State Highway 203 (Mammoth Lakes Junction)travel 8.2 miles north. Turn west onto Deadman Road and follow 3.2 miles to Upper Deadman Campground (Group Camp turnoff across the road). Continue one mile to campground on the right.

Recreation Map

Map showing recreational areas. Map Information


Group Camping