Obsidian Flat Group Campground
The numbers that decide it
Recreation.gov publishes no site-level detail for this campground, so we cannot say what length of rig it takes. Call the managing office before committing to it in a large vehicle.
Site-level detail from Recreation.gov, checked 2026-08-05. Where a field says “not published”, the agency has not published it — it does not mean zero.
Obsidian Flat Group Campground
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.
Before you go
Season
Mid May - September
Reservations
Reservations accepted
Fees
$20 per night.
Scenic drives that pass close
Make it a night on a better road
Byway plans the drive in — real stops, real weather, nothing invented.