Sequoia and Kings Canyon RV Guide: Giant Trees, High Sierra, and What Size Limits Apply

Sequoia and Kings Canyon National Parks in California's Sierra Nevada contain the largest trees on earth (General Sherman Tree, 52,500 cubic feet of wood), dramatic mountain scenery, and some of the most spectacular — and logistically challenging — national park roads in the country. For RVers, the critical planning element is understanding the road restrictions that affect most of the park.

The Critical Road Restriction: Generals Highway

The Generals Highway connects Sequoia and Kings Canyon through the heart of the parks. There is a 22-foot vehicle length limit on the section of Generals Highway between the Foothills Visitor Center and Wuksachi Lodge in Sequoia. Vehicles over 22 feet cannot access the main park interior via this route.

This restriction catches many RVers by surprise. A 26-foot Class C motorhome, a 24-foot travel trailer, a fifth wheel of any typical size — all are too long for the main park route. The alternative approach via Highway 180 into Kings Canyon (the Grant Grove area) does not have this restriction and can accommodate most rigs up to 40 feet.

What You Can Access: Grant Grove Area (Kings Canyon)

Highway 180 from Fresno into Kings Canyon accesses the Grant Grove area without size restrictions. The General Grant Tree — the nation's Christmas tree and the second-largest tree by volume — is here. Grant Grove Village has a campground and visitor center.

Grant Grove Campground: 183 sites. No strict length limit in most loops, though some sites require shorter rigs. Reservable on Recreation.gov. Full-hookup sites available in the group loop. Dump station on-site. This is the best-equipped campground for larger RVs in the park system.

What You Can Access with a Rig Under 22 Feet

If your rig is under 22 feet (Class B van, small Class C, small travel trailer), Generals Highway opens access to:

• Giant Forest: The most spectacular grove of giant sequoias in the world. The General Sherman Tree is here. Congress Trail (2-mile loop) passes the largest sequoias in the park.
• Lodgepole Campground: 214 sites near Lodgepole Village. Sites accommodate up to 35 feet in designated sections, though getting there requires navigating the restricted Generals Highway.
• Crystal Cave: Marble cave accessible by guided tour (book in advance — sells out).

Cedar Grove: The Most Remote Area (Kings Canyon)

Highway 180 continues east from Grant Grove into Cedar Grove — the bottom of Kings Canyon, a glacially carved valley with sheer granite walls rising 8,000 feet. The road is open summer only (closed fall through spring) and has a 22-foot length limit on the steep, winding descent into the canyon.

Cedar Grove Campground (168 sites) is excellent for smaller rigs but inaccessible to most large motorhomes and fifth wheels.

Best Time to Visit

Late May through September is the main access window. Generals Highway can be closed through May or June by snow. Summer (July–August) is crowded and hot at lower elevations (Foothills area hits 100°F+); the Grant Grove and Giant Forest areas stay cooler at 6,000–7,000 feet elevation (70–80°F days). September is the ideal balance: crowds thin, temperatures moderate, fall color begins on aspens.

Related: Best national parks for RV camping  ·  America the Beautiful Pass  ·  Joshua Tree RV guide

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