National park · Three Rivers, CA
Sequoia & Kings Canyon National Parks
What the source pages say
RV Max Length in Feet - 40
nps.gov, read Sep 24, 2026Dump Station: Yes, Year-Round
nps.gov, read Sep 24, 2026Potwisha Campground is open year-round.
nps.gov, read Sep 24, 2026
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Sequoia & Kings Canyon National Parks questions
- What length RV fits Sequoia & Kings Canyon National Parks?
- Max rig length at Lodgepole: 40 ft — per nps.gov, read Sep 24, 2026.
- Is there a dump station at Sequoia & Kings Canyon National Parks?
- Dump station at Potwisha: Year-round — per nps.gov, read Sep 24, 2026.
- Can I run a generator at Sequoia & Kings Canyon National Parks?
- Azalea: 9 am to 9 pm. — per nps.gov, read Sep 24, 2026.
- When is the camping season at Sequoia & Kings Canyon National Parks?
- Season at Potwisha: Year-round — per nps.gov, read Sep 24, 2026.
PickRV
Published by PickRV
Official park page confirmed live on July 25, 2026.
More on Sequoia & Kings Canyon National ParksField notes, rig limits by loop, seasons, what to do, quiet spots
Sequoia & Kings Canyon are two adjoining national parks in California's southern Sierra Nevada, jointly run by the NPS since 1943 and home to the General Sherman Tree, the largest tree on Earth by volume. The Foothills entrance near Three Rivers sits at roughly 1,700ft; the Giant Forest groves climb past 6,700ft within a few twisting miles. There are no electric, water, or sewer hookups anywhere in either park — all sites are dry. Big-rig drivers face one decision that defines the whole trip: which entrance you choose. Pick wrong on Generals Highway and you will be reversing a 30-footer around a hairpin with a 5,000ft drop building beside you.
The notes below are PickRV's editorial record. Only the figures in the strip at the top of the page, each with its link and date, were re-read on the park's own pages.
What Sequoia & Kings Canyon National Parks's own pages say
- When can a generator run at Azalea?
- Azalea: 9 am to 9 pm. nps.gov, read Sep 24, 2026
What the official site doesn't tell you
PickRV editor's field notes
NPS.gov posts the 22ft advisory but buries the real consequence: the Generals Highway from the Ash Mountain (Hwy 198) entrance is not just 'not advised' for big rigs, it physically cannot be reversed on once you're committed — there are no pullouts wide enough to turn a 30-footer, and rangers field calls every summer from drivers stuck at switchbacks. The fix nobody spells out plainly: if your rig tops 22ft, enter the WHOLE park system through the Big Stump entrance on Hwy 180 (north), base at Azalea Campground in Grant Grove (110 dry sites, 6,500ft), and day-trip the Giant Forest. Second gap: there are zero hookups in either park — every site is dry, so dump and fill at the free Potwisha station before you climb. Third: there is no gas inside park boundaries; fuel at Hume Lake (year-round) or Stony Creek (summer only) in the national forest. Fourth: the General Sherman main lot off Wolverton Road fits big rigs far better than the tight Giant Forest Museum lot — park there.
Rig limits by loop and road
Length + clearance
- ·Park-wide, our record: 40 ft
- ·Generals Highway: Potwisha Campground to Giant Forest Museum: 22 ft — NPS advises NO vehicles over 22ft on this 16-mi stretch; single vehicles over 40ft are completely prohibited. Big rigs must use the Big Stump/Hwy 180 northern entrance instead.
- ·Generals Highway: Foothills Visitor Center to Potwisha Campground: 24 ft — Vehicles over 24ft not advised on this lower section either
- ·Moro Rock / Crescent Meadow Road: 22 ft — Single vehicles over 22ft AND any towing units are prohibited — leave the trailer at camp
- ·Crystal Cave Road: 22 ft — Vehicles over 22ft prohibited; road open mid-May to late September only
- ·Mineral King Road: single vehicles over 40ft prohibited; RVs and trailers are NOT permitted in the Mineral King campgrounds at all
- ·Panoramic Point Road (Grant Grove): RVs and trailers prohibited entirely
- ·Generals Highway has no tunnels but tight hairpin turns and a 5,000ft climb over a few miles — the hazard is length and turning radius, not height
Dump + generator
- ·Dump station: Free year-round dump station across the highway from Potwisha Campground (Foothills); seasonal dump at Lodgepole (Free)
- ·Generators: 9am-9pm (Potwisha and other campgrounds; quiet hours strictly enforced)
Boondock alternative within 10-15 min from Grant Grove — free dispersed, 14-day limit per 30 days, no facilities; keep vehicle on/near the road, pack out everything
Sequoia National Forest / Giant Sequoia National Monument — Converse Basin Grove dispersed area off Hwy 180, ~5 mi north of Grant Grove village
Seasons and closures
Full season: Late May - mid-November (all paved scenic roads open; Cedar Grove/Kings Canyon, Moro Rock-Crescent Meadow, Crystal Cave, Mineral King, and Panoramic Point roads all running)
Limited access: Mid-November - April (Foothills, Grant Grove, and Giant Forest stay reachable with tire chains; high scenic spur roads closed by snow)
Known closures:
- ·Highway 180 to Cedar Grove / Kings Canyon: closed mid-November, reopens ~the fourth Friday in April
- ·Generals Highway between Lodgepole and Grant Grove goes unplowed from the Friday after Jan 1 to the third Friday in March
- ·Mineral King Road: open only Wednesday-before-Memorial-Day to the last Wednesday in October (no RVs/trailers in campgrounds regardless)
- ·Tire chains often required on all park roads in winter — carry them or you are turned around at chain-control
- ·Dorst Creek Campground: NOT taking reservations in 2026 due to ongoing disaster-recovery work — verify status before counting on it
What to do at Sequoia & Kings Canyon National Parks
- General Sherman Tree
- Largest tree on Earth by volume; ~0.5mi paved walk from the Wolverton Road lot, which fits big rigs better than the museum lot
- Moro Rock
- 350-step granite dome climb; the access road bans rigs over 22ft and ALL towing units — drive a tow car or shuttle in
- General Grant Tree (Grant Grove)
- The 'Nation's Christmas Tree,' easy paved loop near Azalea Campground — the big-rig-friendly base on the Hwy 180 side
- Kings Canyon Scenic Byway to Cedar Grove
- Drops into one of North America's deepest canyons; road closes mid-Nov to late April, so it's a summer-only payoff
Hidden — not on the official map
PickRV editor's quiet spots
Converse Basin Grove (Sequoia National Forest)
Free dispersed camping ~5mi N of Grant Grove on Hwy 180; logged giant-sequoia stump field most park visitors never see
Zumwalt Meadow (Cedar Grove)
Flat 1.5mi loop along the Kings River under canyon walls; far quieter than the Giant Forest crowds
California scenery around Sequoia & Kings Canyon National Parks
Landscapes from around California — the country you cross on a Sequoia & Kings Canyon National Parks RV trip.
Weather, air, sky and park alerts right nowLive for Sequoia & Kings Canyon National Parks. Open-Meteo, sunrise-sunset.org, National Park Service alerts.
Will my rig fit? Try your lengthChecks a length against the park caps in our record.
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Browse California rigsThis guide is provided for general informational purposes only. PickRV is not an insurer, legal advisor, or vehicle-safety authority. Trip planning, route selection, rig suitability, weather, and emergency decisions are the renter's responsibility. Always consult the rig manufacturer's owner's manual, your insurance provider, the U.S. National Park Service (nps.gov), NOAA / NWS weather alerts (weather.gov), state and local emergency-management agencies, and current local regulations before and during travel. Cost figures, season windows, road conditions, and fee references on this page are estimates as of May 2026 and vary by season, location, rig, carrier, and operator. Mentions of brand names, state-tourism marks, national-park feature names, or third-party programs are informational only and do not imply affiliation, sponsorship, or endorsement.
California rules to know before you rent
Per-state legal callout · CA
Before you rent in California — key local rules
Noncommercial Class B for motorhomes > 40 ft or > 3 axles
California requires a noncommercial Class B license for housecars over 40 ft OR with more than 3 axles. Standard Class C covers most rental motorhomes under that threshold (CA VC §12804.9, §12804.10). Out-of-state visitors must meet the same standard.
California Vehicle Code §12804 · verified 2026-05-24
California Boater Card mandatory by 2025 (all ages)
As of January 1, 2025, all motorized-vessel operators must carry the California Boater Card. The card is issued for life after passing a NASBLA-approved course administered by California State Parks Division of Boating and Waterways.
California State Parks — Boater Card · verified 2026-05-24
Green sticker / red sticker required for OHV use on public land
California OHVs must display a current OHV registration sticker (green = year-round, red = restricted seasons for 2003-and-earlier 2-stroke) on any state-managed riding area. Issued by DMV; renewed every 2 years.
California State Parks OHMVR Division · verified 2026-05-24
0.08% BAC limit; open container prohibited in passenger area
Standard 0.08% BAC for drivers (0.04% for commercial). California enforces the federal open-container framework: alcoholic beverages must be sealed or stored in a non-passenger area (e.g., RV living-quarters separator closed) while the vehicle is on a public roadway.
California Vehicle Code §23222 · verified 2026-05-24