Lassen Volcanic National Park · caps RVs at 35 ft
Lassen's hydrothermal features collapse without warning — stay on the trails, and book Manzanita Lake (35 ft) at the north entrance because the south road sits above 8,500 ft and closes early.

35ft
None (dry)
Yes
Late May – mid-October (Manzanita Lake)
Active hydrothermal areas — Bumpass Hell, Sulphur Works, Devils Kitchen — give Lassen its identity, and the park enforces strict on-trail discipline because the thin ground crust around boiling mud pots has fatal collapse history. Highway 89 through the park (the Lassen Park Highway) sits at 8,500 ft at the summit and snowpack closes the south section until June most years. Manzanita Lake Campground (north entrance) accepts rigs up to 35 ft, runs late May through mid-October, dry-camp with a dump station. Summit Lake (north and south loops) holds 30-ft rigs. Butte Lake on the park's east side is similar but smaller. Generators are restricted to daylight hours in all loops. The campground roads handle their stated caps but pull-throughs are limited.
Primary sources
How to book this park
Reservations + adjacent staging
Official reservation portalLooking for the rig? Browse California RV rentals on PickRV →
Other national parks in California
Yosemite
Every Yosemite Valley campsite operates under bear protocol — secure food inside the rig or the metal locker every night or get cited. Upper Pines holds 40-ft rigs but you'll dry-camp.
Sequoia
Generals Highway prohibits rigs over 24 ft between Hospital Rock and Giant Forest. Potwisha (year-round) and Lodgepole (May–Oct) are the 22-ft basecamps; Mineral King is a 22-ft hard cap on gravel.
Kings Canyon
Highway 180 drops 4,700 ft in 31 miles to Cedar Grove and closes November–April. Grant Grove campgrounds stay year-round at 30 ft; in-canyon loops are May–October only.
Channel Islands
Channel Islands is boat-only — stage your rig at McGrath State Beach or Ventura Beach RV Resort, walk the island campgrounds with a pack, and time the ferry window around the weather call.
California rules · last verified 2026-05-10
- Rental tax
- 9.75%
- Min driver age
- 21+ std · 25+ Class A
- Gravel roads
- Permit required
- Generator quiet
- 22:00-06:00
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