Obsidian Flat

Obsidian Flat

The Obsidian Flat location is in Lee Vining, California
93541. This page provides detailed contact information for this campground location including the campground phone number, office hours, reservation information and driving directions.

If you have any questions about the Obsidian Flat facility, or if you need to reserve a campsite, then call the campground listed below.

Box 429

Lee Vining

Phone number


Campground information Lee Vining, California


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.

The majestic scenery and challenging trails are an obvious draw for hikers, mountain bikers and off-road vehicle enthusiasts. Deadman Creek Trail leads hikers into the spectacular Ansel Adams Wilderness.


One group camping area can accommodate one group of up to 50 people, and up to five RVs (up to 40 feet in length) or 15 vehicles at a time. The site is fairly primitive and is equipped with a picnic table, vault toilet, campfire ring and bear-proof locker for food storage.

Natural Features

The campground is named after an obsidian lava flow nearby. It is situated in a pine forest at an elevation of 7,800 feet. Deadman Creek is adjacent to the facility, and several lakes are down the road.

Many species of wildlife call the mountains home, such as black bear, mountain lions, mule deer, pine marten, pika and numerous fish and birds.

Nearby Attractions

Hikers can access the scenic Ansel Adams Wilderness via nearby trails, and Yosemite National Park is a great day trip.

Ansel Adams Wilderness

Yosemite National Park

Frequently Asked Questions About Box 429 Lee Vining, CA

How do I make a reservation with Obsidian Flat?

To make reservations at Obsidian Flat, you can call the office at 760-647-3045.

Where is Obsidian Flat located?

The Obsidian Flat is located at Box 429 in Lee Vining,
. This is the location you will need to go to for camping and information.

Does Obsidian Flat have tent or RV camping?

Obsidian Flat offers both tent and RV camping, but to confirm you will need to call the office at 760-647-3045 to make sure things haven’t changed.

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