Obsidian Flat
Closed — Closed for the season due to snow. Typically opens late May or early June depending on snow levels. Reservations available through Recreation.gov.
Stay Limits, Parking, and Developed Recreation Site Use
This forest order was put in place to protect natural resources and promote public safety.
Reds Meadow Road Reconstruction Project
www.fs.usda.gov/r05/inyo/projects/reds-meadow-road-reconstruction
Wilderness Use Restrictions
This Forest Order prohibits recreating within the portions of the John Muir, Ansel Adams, Hoover, and Golden Trout Wildernesses located in the Inyo National Forest.
Mount Whitney Zone Access Restrictions
This forest order prohibits recreating in the Mount Whitney Zone to provide for public safety and protect natural resources.
Ansel Adams and John Muir Wilderness Campfire Restrictions
This forest order prohibits campfires in portions of Ansel Adams and John Muir Wilderness Areas that are located on the Inyo National Forest, as shown on the Exhibits.
Golden Trout and Hoover Wilderness Campfire Restrictions
This forest order prohibits campfires in portions of Golden Trout and Hoover Wilderness Areas that are located on the Inyo National Forest, as shown in the Exhibits.
Reds Meadow Road Closure Order
This Forest Closure Order prohibits being on the entirety of Reds Meadow Road to provide public safety during the 2025 reconstruction season.
ESCCRP Project Area Closure
This forest order prohibits access to roads affected by the ESCRRP project to provide for public safety while contractors perform forest health and fuels reduction work surrounding the Town of Mammoth Lakes and beyond.
Inn Fire Closure Order
This Forest Closure Order prohibits entrance into the Inn Fire Area Closure to protect public health and safety from environmental hazards, wildfire, and wildfire suppression operations.
Hot Creek Closure Order
This Forest Order prohibits recreating in Hot Creek within the Mammoth Ranger District.
Goat Prohibition Order
This Forest Order prohibits possessing or storing a goat within the Inyo National Forest Goat Prohibition Area.
Mammoth Mill Site Area and Trail Closure
This Forest Order prohibits recreating, entering or being in the Mammoth Mill Site Closure Area and the Mammoth Stamp Mill Trail.
B&B Mine Closure Order
This Forest Order prohibits recreating within the B&B Mine and Mill Site Closure Area.
Food and Refuse Storage Restrictions
This Forest Order prohibits food and refuse in locations in Exhibits A and C-J, unless stored in a bear-resistant container.
About
Obsidian Flat Group Campground provides a secluded getaway in the eastern Sierra Nevada Mountains at 7,800 feet elevation, surrounded by pine forest and named after a nearby obsidian lava flow. Located just outside Mammoth Lakes, the campground offers one large group site that can accommodate up to 50 people and up to five RVs or 15 vehicles. The campground sits adjacent to Deadman Creek, known for exceptional eastern Sierra trout fishing. Deadman Creek Trail provides direct access to the spectacular Ansel Adams Wilderness for hikers and mountain bikers. The area is also popular with off-road vehicle enthusiasts exploring the surrounding forest and unique geology. Wildlife is abundant in the area, including black bear, mountain lions, mule deer, pine marten, pika, and numerous fish and bird species. Several lakes are located down the road, and Yosemite National Park makes an excellent day trip. The facility is gated and primitive, requiring campers to bring their own water and practice bear-aware camping techniques.
Directions
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.
Nearby Campgrounds
Location
Amenities
| Water | No |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | No |
| Wifi | No |
| Pets Allowed | — |
| Showers | No |
| Electric Hookups | No |
| Water Hookups | No |
| Sewer Hookups | No |
| Camp Store | No |
| Price | $20 |
Vehicle
| Max RV Length | 40ft |
| Max Trailer Length | 30ft |
| Big Rig Friendly | Yes |
| Pull Through Sites | No |
Contact
| Phone | +1 (760) 647-3044 |
Cell Service
| AT&T | Yes |
| Verizon | Yes |
| T-Mobile | None |
Availability
Photos
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