Rocky Mountain National Park · caps RVs at 40 ft
Trail Ridge Road climbs to 12,183 ft at a sustained 6-7% — bring transmission cooling and trust your brakes. Moraine Park is the year-round 40-ft basecamp on the east side.
40ft
None (dry)
Yes
Late May – late September (Moraine Park year-round)
Trail Ridge Road tops out at 12,183 ft — the highest paved through-road in any US national park — and rigs of any length climb 4,200 ft from the Estes Park gate at a steady 6-7% grade. The road itself imposes no length restriction, but cooling-system load and brake fade are real planning factors. Moraine Park Campground is the year-round RV option at 40 ft length cap; Aspenglen, Glacier Basin, and Timber Creek run mid-May through late September with similar caps. Every loop is dry-camp — no Rocky Mountain NPS site has hookups. Dump station sits at Moraine Park year-round and Glacier Basin in season. The park's timed-entry permit system runs late May through mid-October and applies to vehicles including RVs; book the permit the same window you book the campsite.
Primary sources
How to book this park
Reservations + adjacent staging
Official reservation portalLooking for the rig? Browse Colorado RV rentals on PickRV →
Other national parks in Colorado
Mesa Verde
Morefield Campground holds 15 full-hookup pull-throughs (40 ft) inside the park — the largest in-park RV concessioner operation. Cliff dwelling tours sell out in hours; book the moment the window opens.
Black Canyon of the Gunnison
South Rim Campground holds 35-ft rigs with electric — only hookups in the park. North Rim is gravel and 22 ft; East Portal's 16% grade road is closed to any RV.
Colorado rules · last verified 2026-05-10
- Rental tax
- 7.60%
- Min driver age
- 21+ std · 25+ Class A
- Gravel roads
- Varies by rig — verify with vendor
- Generator quiet
- 22:00-07:00
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