The Mighty 5 — Arches, Canyonlands, Capitol Reef, Bryce Canyon, and Zion — is the best week of red-rock canyon driving in the country. In a car. In an RV, two 2026 changes scramble the planning that every "best Utah road trip" listicle on the SERP still assumes: Zion implemented new large-vehicle restrictions on the Zion–Mt. Carmel Highway starting June 7, 2026, and Arches dropped its timed-entry reservation requirement for the year. Both change what rig you should rent and how you route the loop.
The short version:
- The loop is about 1,100 miles and best done over 7–10 days (10–14 relaxed), commonly Salt Lake City → Arches/Canyonlands → Capitol Reef → Bryce → Zion.
- New June 7, 2026 Zion rule: vehicles over 35 ft 9 in long, 7 ft 10 in wide, 11 ft 4 in tall, or 50,000 lb are banned from the Zion–Mt. Carmel Highway entirely. Big rigs can still enter Zion from the south for Watchman Campground, the Visitor Center, and Zion Lodge.
- Arches dropped timed entry for 2026 — no advance reservation needed.
- In-park RV campgrounds have site-specific length limits and mostly no hookups (Watchman has electric). Reserve six months ahead on Recreation.gov.
- One-way Salt Lake City–to–Las Vegas rentals and delivery to Moab or Springdale both work.
How many days do you need for the Utah Mighty 5 in an RV?
Plan seven to ten days for a comfortable RV Mighty 5 loop, ten to fourteen if you want to actually hike, and a hard floor of five if you can only swing a quick run. The full loop is roughly 1,100 miles and about 19 hours of driving — at a Class C RV's 10–13 mpg, that's six to eight fuel stops.
We've watched renters try to cram all five parks into four days; the ones who gave it seven to ten actually enjoyed the canyons instead of just driving past them. Two travel days plus one full day in each of the five parks gets you a comfortable seven-day trip.
- Peak crowds: April–May and September–October are the busiest. Summer is hot (100°F+ in Arches). Winter brings snow at Bryce (8,000 ft).
- Class C fuel math: at 12 mpg, the 1,100-mile loop is about 92 gallons. Budget $350–$420.
- No travel days back to back. Alternate driving days with park days.
What's the best order and route for the Mighty 5 road trip?
The standard route runs Salt Lake City → Moab (Arches and Canyonlands) → Capitol Reef → Bryce Canyon → Zion → fly out of Las Vegas or back to SLC. Going west to east doesn't work as well — ending at Arches puts the heat at the end.
Drive segments:
- SLC → Moab: ~234 mi, 4 hours. Stop for fuel and groceries in Green River.
- Moab → Capitol Reef (Torrey): ~140 mi, 2.5–3 hours. UT-24 west.
- Capitol Reef → Bryce Canyon (Ruby's Inn area): ~120 mi, 2.5 hours. UT-12 Scenic Byway is one of the most scenic drives in the West.
- Bryce → Zion (Springdale): ~85 mi, 1.5–2 hours.
- Zion → Las Vegas: ~160 mi, 2.5 hours.
- Zion → SLC: ~300 mi, 4.5 hours.
The west-east option (Vegas → Zion → Bryce → Capitol Reef → Canyonlands → Arches → SLC) also works if your one-way pickup is in Vegas. Browse Salt Lake City pickup options or Moab, the Arches and Canyonlands gateway.
Can you drive an RV through Zion's tunnel — and what changed June 7, 2026?
Maybe — and this is the most important answer in the guide. Starting June 7, 2026, the Zion–Mt. Carmel Highway is closed to vehicles over 35 ft 9 in long, 7 ft 10 in wide, 11 ft 4 in tall, or 50,000 lb. Combined vehicles (truck-plus-trailer) are capped at 26 ft from hitch to rear axle and 50 ft overall. Before this rule, oversize rigs could pay for a paid tunnel-escort permit; after June 7, 2026, no escort is offered for vehicles over the limits.
What this changes for renters:
- Most Class B campervans and smaller Class C motorhomes (under 35 ft 9 in) are still fine on the Mt. Carmel Highway and through the tunnel.
- Many large Class A motorhomes and tall Class C "double-slide" units exceed the 11 ft 4 in height limit even when under the length cap. Confirm height and width (mirrors included) on the listing.
- Big rigs can still enter Zion from the south entrance for Watchman Campground, the Visitor Center parking lot, Zion Lodge, and the Zion Canyon Scenic Drive during the shuttle off-season.
- Alternate routes around Zion add 10 to 45 minutes of drive time per the NPS.
The Zion tunnel restriction catches more renters off guard than any other Mighty 5 detail. We always tell renters to measure their rig against the four numbers before they book. Renting a smaller Class C or campervan that fits Zion is the cleanest fix.
Our how-to-drive-an-RV guide covers the habits, and the Zion National Park guide has the park-specific picture.
Where do you camp in an RV at each Mighty 5 park?
Each park has at least one in-park campground, but they vary widely on RV length and hookups:
Two practical reads:
- Zion's Watchman is the most RV-friendly campground in the Mighty 5 — site lengths up to 99 ft on some pads, electric on A and B loops, south-entrance access for big rigs. Releases open six months ahead on Recreation.gov at 10 a.m. EST. Mark the Watchman Campground rental hub.
- The other in-park campgrounds are mostly small, no-hookup, and length-restricted. For anything over 35 ft, plan to stay at gateway full-hookup parks — Moab, Torrey, Tropic or Hatch, Springdale or Hurricane.
Owners around Moab and Springdale tell us a lot of their renters take a delivered rig to a gateway full-hookup park, so they never have to wrestle a big rig through the tunnel at all. Our RV rental delivery guide covers the flow.
Do you need timed entry or reservations for the Mighty 5 parks in 2026?
Arches dropped its timed-entry reservation requirement for 2026 — no advance ticket needed to enter the park, the NPS announced in February. Zion, Bryce, Capitol Reef, and Canyonlands have no timed-entry system at all. Campground reservations and a few specific permits are still required.
What you still need:
- In-park campgrounds: Watchman (Zion), Devils Garden (Arches), Fruita (Capitol Reef), Sunset and North (Bryce), Needles (Canyonlands). Recreation.gov; six months ahead.
- Zion shuttle (in season): runs March through November on the main canyon drive. Free; no reservation.
- Angels Landing permit (Zion): a seasonal lottery for the hike past Scout Lookout.
- The Wave (Coyote Buttes North) permit if you're adding a side trip.
Peak-weekend parking at Delicate Arch, Devils Garden, and Windows can fill by 9 a.m. The Visit Utah Mighty 5 itinerary has the parking-pressure tips.
Can you do a one-way RV rental for the Utah loop?
Yes, Salt Lake City pickup with a Las Vegas drop-off (or vice versa) is one of the more common one-way pairs on Outdoorsy. Expect a one-way fee. If a one-way isn't available, the cleaner alternative is delivery. Renters we hear from who do delivery for a Mighty 5 trip almost always say the rig sat parked at a Moab or Springdale full-hookup site while they drove a rented car into the parks each day — exactly the way the new Zion limits push big-rig planning anyway.
Three practical setups:
- One-way SLC → Vegas: pick up in SLC, run east to west, drop in Vegas, fly home.
- One-way Vegas → SLC: reversed.
- Delivery to Moab or Springdale: host drops and sets up at a gateway park; fly into Vegas or SLC and rent a car.
Browse the Utah RV rentals hub, Zion National Park RV rentals, and the Bryce Canyon guide.
Key takeaways
- 1,100-mile loop, 7–10 days standard. Travel SLC → Moab → Capitol Reef → Bryce → Zion → Vegas or back to SLC.
- June 7, 2026 Zion rule: rigs over 35'9" L / 7'10" W / 11'4" H / 50,000 lb banned from the Zion–Mt. Carmel Highway.
- Arches dropped 2026 timed entry — no advance ticket needed.
- Watchman (Zion) is the most RV-friendly in-park campground.
- One-way SLC ↔ Vegas rentals and gateway-park delivery skip the backtrack.
About this guide
This guide was prepared by the Outdoorsy editorial team. The June 7, 2026 Zion–Mt. Carmel Highway vehicle restrictions, the 2026 Arches no-timed-entry decision, per-park RV campground lengths and hookup availability, and the standard loop mileage were verified on June 12, 2026 against primary NPS sources: the Zion large-vehicle news release and large vehicles page; the Arches 2026 timed entry announcement; the Recreation.gov pages for Watchman, Devils Garden, Fruita, Sunset, and North; and the Visit Utah Mighty 5 itinerary.
