Sequoia National Park · caps RVs at 22 ft
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.

22ft
None (dry)
Yes
May – October (Lodgepole) · Year-round (Potwisha)
Generals Highway between the Foothills and Giant Forest implements one of the strictest length caps in the national park system: rigs over 22 feet are explicitly advised against, and rigs over 24 feet are formally prohibited on the section between Hospital Rock and Giant Forest. The reasoning is the road geometry itself — switchbacks tighter than commercial bus design accommodates, plus granite overhangs at four named locations. Potwisha Campground at low elevation in the Foothills accepts up to 24-ft rigs year-round; Lodgepole at 6,700 ft holds the 22-ft cap and runs May through October. Dorst Creek further north is similar. Dry-camp only across the system. The Mineral King entrance at the south is even tighter — 22-ft hard cap and a 25-mph gravel road for the last 20 miles.
Primary sources
How to book this park
Reservations + adjacent staging
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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.
Lassen Volcanic
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.
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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