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National Forest

Photo: Via Recreation.govPublic domainRecreation.gov

Inyo National Forest Obsidian Flat Group Campground

Inyo National Forest · June Lake, CA

Verify with the local Forest Service ranger district

Forest Service campgrounds vary by district. Fire restrictions, road conditions, and operating dates are set locally and change seasonally. Call the ranger district to confirm.

Directions

1

Total Sites

0.0

0 Reviews

1 Group

Official sources & verification

Managed by US Forest Service

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Source of truth

Managing agency

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  • Operator:760-647-3045
  • Address:BOX 429 · June Lake, CA · 93541
We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this campground using the links above before you go — you are responsible for compliance. Last verified by us: Jul 10, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Live availability

via Recreation.gov
See every open campground nearbySame dates & filters, across the whole area

Availability is a recent snapshot, not a live hold — you always complete the booking on recreation.gov.

About

Overview 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. Recreation 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. Facilities 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](http://www.recreation.gov/recAreaDetails.do?contractCode=NRSO&recAreaId=12842&agencyCode=128) [Yosemite National Park](http://www.nps.gov/yose/index.htm)

Reviews

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How busy it gets

Recreation.gov
3.9

9 camper reviews on Recreation.gov

Amenities

Flush Toilets
Picnic Tables
Fire Rings
Trash Service

Cell reception

Camper reports · checked Sep 29, 2026

Some Coverage

Average 1.6 of 4 bars · 9 reports across 3 carriers

Phone calls may occasionally drop; text messages may be delayed. Data service may be unusable. Drop-outs are common and it may be necessary to search for signal. Social media likely unusable.

  • Verizon

    No Service

    0.3/4

    3 reports

  • AT&T

    Some Coverage

    2.0/4

    3 reports

  • T-Mobile

    Some Coverage

    2.3/4

    3 reports

Reported by campers on Recreation.gov, not measured by us. Reception varies by handset, weather, and where you stand in the campground. Recreation.gov

Campground Rules

  • Campfires generally permitted — verify current fire restrictions before lighting

Reservations

This campground accepts reservations. Book early for popular dates.

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Individual Sites (1)

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Trails near Inyo National Forest Obsidian Flat Group Campground

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Hunt context

Hunting units around this campground

During hunting seasons, wear blaze orange and check regulations — see the California hunting page

Nearby Campgrounds

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