Boulder Basin is a 16-site campground in San Bernardino National Forest. It accommodates RVs, tents, and trailers, with sites for RVs up to 20 ft. It is a no-hookup campground. Pets are welcome at some sites. Maximum party size is 8. Like most popular Recreation.gov campgrounds, Boulder Basin books up months ahead, but cancellations open regularly. Campsite Sniper watches every site 24/7 and alerts you the moment one frees up.
View on Recreation.gov ↗ Get directions ↗
Tap any pin on the map to see that campsite's open dates, details, and a booking link.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We scan Boulder Basin every minute. One watch covers every matching site.
The instant a match opens, you get a push. Go book it before anyone else.
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Boulder Basin's 16 sites book up months ahead on Recreation.gov; most openings come from cancellations. Pick a site on the map to see its 6-month calendar, or set a free Campsite Sniper alert to get pinged the instant one opens.
In just the last 7 days, 6 cancellations opened across 2 different dates at Boulder Basin. "Sold out" rarely means sold out.