Obsidian Flat
Sold out? Sites at Obsidian Flat open up when campers cancel.
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About Obsidian Flat
Obsidian Flat is a national park campground at Inyo National Forest in Mono County, California. Reservations are managed through Recreation.gov. When a booked site here is cancelled it can vanish within minutes, so Campsite Tonight monitors it 24/7 and auto-adds the opening to your Recreation.gov cart before anyone else.
Obsidian Flat is in very high demand — sites here routinely sell out well in advance. Cancellations are often the best way in, which is exactly what Campsite Tonight watches for.
The campground accommodates RVs and trailers up to 40 ft.
Other campgrounds at Inyo National Forest include Reversed Creek Campground, Gull Lake Campground, June Lake, Agnew Meadows Group Camp and Agnew Horse Camp.
Total reservations in June — 2023: 5 · 2024: 7 · 2025: 2
Location
Address
Lee Vining, California
Coordinates
37.7333, -119.0167
Very high demand - sites typically fill up immediately when the booking window opens. Plan to book the moment reservations open.
- •September sees 17 reservations - book early or set cancellation alerts.
Nearby Campgrounds
Reversed Creek Campground
Inyo National Forest
Gull Lake Campground
Inyo National Forest
June Lake
Inyo National Forest
Agnew Meadows Group Camp
Inyo National Forest
Agnew Horse Camp
Inyo National Forest
Oh Ridge
Inyo National Forest
Photos
Obsidian Flat FAQ
How far in advance should I book Obsidian Flat?
Very high demand - sites typically fill up immediately when the booking window opens. Plan to book the moment reservations open. Mark your calendar for when the booking window opens (typically 5-6 months ahead). Also set alerts - cancellations do happen.
What is the busiest time at Obsidian Flat?
September typically sees the highest reservation activity at Obsidian Flat. During peak times, 100% of reservations are made 2+ weeks in advance.
Are there campsites available at Obsidian Flat right now?
Obsidian Flat is currently fully booked for the next 14 days. However, cancellations happen frequently - download the Campsite Tonight app to get instant alerts when sites become available.
Where is Obsidian Flat located?
Obsidian Flat is located in Inyo National Forest, near Lee Vining, California.
Track Availability at Obsidian Flat
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