Campground · CA
OBSIDIAN FLAT
OBSIDIAN FLAT is generally lottery-hard to book. Difficulty holds fairly steady across the 1 months we have reservation data for. The heat strip below breaks down every month — pick one for its full odds, lead-time chart, and easier nearby alternatives.
Booking difficulty by month
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- Aug10
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- Dec–
Midweek tip: in the busiest month (August), arrivals are lightest on Tuesday — shift your dates to improve your odds.
When reservations open
Booking window
Reservations open on a rolling 6-month window at 7:00 AM America/New York.
For example, sites for April 15, 2027 become bookable on October 15, 2026. Set a reminder a few minutes before release for the best shot.
Standard Recreation.gov 6-month rolling window: sites become bookable 6 months before arrival at 7:00 AM ET.
Sites & amenities
Activities: HIKING, CAMPING, OFF HIGHWAY VEHICLE TRAILS, WILDLIFE VIEWING
How much does it cost to camp at Obsidian Flat Campground?
$20 dollars per night.
Fee details as listed on Recreation.gov. Rates and passes change by season, so confirm the current price on Recreation.gov before you book.