Reviewed by Ben Kiser, RV rental operator and fleet consultant.
The rule that governs this destination
Since 7 June 2026 there is no tunnel permit. An RV over 35 ft 9 in long, 7 ft 10 in wide or 11 ft 4 in high is turned around at Canyon Junction, and the width measurement includes your mirrors.
Read from the park’s own pages on . Limits change, so check the source before you book.
NPS gives 300 miles to the airport. The Utah Office of Tourism gives 309. The two disagree and neither is averaged here.
Utah Office of Tourism, prefaced "Typical averages barring inclement weather or other traffic events"
Read from the structured limits on this page, never from prose.
610 publish a length, 86 a height, 80 a width.
These are not advisory. A vehicle over any one of them is refused and turned around, and there is nothing to buy that changes the answer.
Applies to the whole highway between Canyon Junction and the East Entrance, rather than to the tunnel alone. Combined vehicles also cannot exceed 26 ft from hitch to rear axle.
Quoted rather than paraphrased, because a paraphrase of a size limit is how a foot goes missing between the source and the page you read it on.
35 ft 9 in long, 7 ft 10 in wide, 11 ft 4 in high, 50,000 lbs
Vehicles that exceed any of the size or weight limits outlined below will not be permitted to drive between Canyon Junction and the East Entrance.https://www.nps.gov/zion/planyourvisit/large-vehicles.htm
Mirrors, tyres and attachments count
Measurements include mirrors, tires, and attachments such as AC units, bike racks, satellite dishes, or other after-market modifications.https://www.nps.gov/zion/planyourvisit/large-vehicles.htm
No private vehicles of any size
During the shuttle season, visitors cannot drive personal vehicles on the Zion Canyon Scenic Drive. This includes before shuttles start for the day and after they stop running.https://www.nps.gov/zion/planyourvisit/zion-canyon-shuttle-system.htm
Pedestrians and cyclists prohibited
Pedestrians and bicycle riders (including e-bikes), are prohibited within the Zion-Mt. Carmel Tunnel. Bicycles and pedestrians must be transported through the tunnel by a motor vehicle.https://www.nps.gov/zion/learn/management/superintendents-compendium.htm
Where a column reads not published, no page published by the agency that runs this ground states a figure. That is the source being silent, not this page being incomplete.
| Campground | Max RV length | Sites | Hookups | Season | Reservations | Dump station |
|---|---|---|---|---|---|---|
| Watchman Campground | Not published | 184 | Electric in Loops A and B only, almost all 30 amp with a handful of 50 amp. No full hookups anywhere. | Open year-round | Up to six months in advance, all sites reservable | Yes |
| South Campground | Not published | 124 | None | Reopened 29 May 2026 after rehabilitation. Closes seasonally in winter. | Up to 14 days before arrival only | Yes |
| Lava Point Campground | 19 ft | 6 | None. No potable water, pit toilets. | Typically May to September, weather allowing | Up to 14 days in advance | No |
Both positions are printed. Neither is averaged into a figure no source supports, and neither is quietly dropped.
Open. Reopened 29 May 2026 with reservations required.
NPS news release, 27 May 2026
https://www.nps.gov/zion/learn/news/zion-national-park-to-reopen-south-campground-on-may-29.htm"Camping in Watchman Campground or South Campground (once open)"
NPS large vehicles page, last updated 2 September 2026
https://www.nps.gov/zion/planyourvisit/large-vehicles.htmThe page an oversize RV driver is sent to still implies South is shut, three months after it reopened. A renter planning around Watchman alone competes for 184 sites instead of 308.
Confirm at: zion_park_information@nps.gov or 435-772-3256
These are the questions a renter asks that no official page answers. Each one was checked rather than assumed, and a gap is recorded as a gap. Filling one with a plausible number would be the most useful-looking lie on the page.
Salt Lake City RV Rental is a finder. It owns no RVs and is not affiliated with the National Park Service, the Utah Office of Tourism or UDOT. Park rules change between seasons, so read the source before you book.
270 miles, per National Park Service
What stops a vehicle here
Bryce Point Road and Paria View Road are closed to RVs over 20 ft and to anything towing. That closure appears only in the Superintendent's Compendium, not on a single page a visitor would normally read.
4 hours, per the Utah Office of Tourism
Read the limits
236 miles, per National Park Service
What stops a vehicle here
Timed entry is not required at Arches in 2026, which most RV guides still get wrong. The constraint that replaced it is physical: NPS tells oversize vehicles to leave the rig in town or in the visitor center lot, and the park has no dump station, so you empty tanks in Moab.
3.5 to 4 hours to Moab, per the Utah Office of Tourism
Read the limits
237 miles, per National Park Service
What stops a vehicle here
The Elephant Hill Access Road bans anything over 21 ft. It is an ordinary-looking two-wheel-drive gravel road to a major trailhead, and a 28 ft rig legal in both park campgrounds is illegal on it.
3.5 to 4 hours to Moab, per the Utah Office of Tourism
Read the limits
Not stated by the National Park Service
What stops a vehicle here
Capitol Reef publishes two different RV limits for Grand Wash and Capitol Gorge, 27 ft and 23 ft, and a 25 ft Class C sits between them. Book under 23 ft if you want both spur roads, because the 23 ft figure is on the more recently updated page. Take a 25 ft rig and you may reach the turning and have to reverse it out.
3.5 hours, per the Utah Office of Tourism
Read the limits
41 miles, per Utah State Parks
What stops a vehicle here
Utah State Parks publishes no RV length limit for the causeway or for any campground here, so nothing stops a rig by size. Power and water decide instead, and both exist in one loop: Bridger Bay sites 27 to 64, three of which are cottages where RVs are not permitted. Book one of the 35 hookup sites that leaves, or cross the causeway with full tanks. There is no gas station on the island, the only other tap is the dump station in that same loop, and rideshare drivers will not come out to collect you.
Read the limitsNot stated as a total by the Forest Service or UDOT
What stops a vehicle here
The only limit UDOT publishes for SR-150 is 80,000 lbs, and the heaviest RV in this market is rated 51,000. No length, width or height limit exists for the road. What decides is the season: Mirror Lake Campground opens 22 June and closes 20 September, 91 days, and UDOT publishes no date for the closure at either end of it.
Read the limits205 miles, per US Forest Service
What stops a vehicle here
No road in publishes an RV length limit and the campsites here are the longest in this data set, up to 80 ft at Mustang Ridge. What decides is water. There are no hookups anywhere in the recreation area, drinking water at most campgrounds runs only from mid to late May to mid September, and the pass you need to be here cannot be bought online.
Read the limitsNot stated by Utah State Parks
What stops a vehicle here
Bear Lake publishes no RV length limit. It publishes pad lengths instead, 64 ft to 105 ft at Birch and 44 ft to 68 ft at Big Creek, all of them full hookup. What decides is whether you can book at all, because the park's conditions page says every Rendezvous Beach, South Eden and North Eden site is first come, first served until closing in October while its own facilities page still sends you to Reserve America.
Read the limits