Campsite AtlasObsidian Flat
Obsidian Flat Group Campground, located just outside of 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, bicycling, fishing and off-road vehicle riding options. The eastern Sierras are known for their exceptional trout fishing. Campers can try their luck in Deadman Creek.
Campsites
| Group sites | 1 |
| Total | 1 |
Amenities & rules
Fees: $20 dollars per night.
Compiled from site-level records; individual sites vary. Confirm on Recreation.gov or with the managing office.
Getting there
Heading North. From U.S. Highway 395 and State Highway 203 (Mammoth Lakes Junction), travel 8.2 miles north on 395. Turn west onto Deadman Road and follow for 3.2 miles to Upper Deadman Campground. Turn toward the Group Campground turnoff onto FS Road 2S05F. Continue one mile to the campground on the right. Heading South. From U.S.
Campgrounds nearby
Reservable4.6 miles away
Reservable5.5 miles away
Data source: Recreation.gov RIDB, retrieved August 30, 2026. The Campsite Atlas is an independent publication and is not affiliated with or endorsed by the Recreation.gov or any federal agency. Always confirm critical details on the official Recreation.gov page before you travel.