National park · est. 1899
Mount Rainier National Park · caps RVs at 35 ft
- Max RV
- 35 ft
- Season
- Late May – mid-October (Cougar Rock, Ohanapecosh)
Going to Mount Rainier National Park? Tell us the nights.
One email when a Washington owner lists a rig for those nights.
Mount Rainier's RV season trails the Cascade snowpack by 4-6 weeks every year — Paradise's road plows out in late May most years but the Cougar Rock and Ohanapecosh campground water systems don't go live until the third week of June, and the season closes hard with the first measurable Stevens Canyon snowfall in October. Cougar Rock (on the Nisqually side) and Ohanapecosh (southeast) both run 35-ft length caps with dry-camp loops; no hookups exist anywhere inside the park boundary. Dump stations operate at Cougar Rock and Sunshine Point only in season. Stevens Canyon Road handles 35-ft rigs between Ohanapecosh and Paradise but the Paradise Inn loop turnaround caps lower; plan a tow vehicle if Paradise itself is the destination.
What the length limit is measuring
- Pad length — the rig plus anything it tows
- Height — what the branches and the awning need
- Turning arc — the swing off the loop road
How the in-park dump station is used
- Waste outlet — under the rig, driver side
- Ground drain — hose seated, then the valve opens
- Rinse standpipe — non-potable, for the hose only
Primary sources
How to book this park
Reservations + adjacent staging
Official reservation portalLooking for the rig? Browse Washington RV rentals on PickRV →
Quick answers
Frequently asked
Can you take an RV into Mount Rainier National Park?
RVs up to 35 ft are allowed in Mount Rainier's campgrounds.
Are there RV hookups at Mount Rainier National Park?
No — Mount Rainier's campgrounds are dry (no hookups). Fill water and charge before you arrive.
Is there an RV dump station at Mount Rainier National Park?
Yes — Mount Rainier has an RV dump station.
Other national parks in Washington
Olympic
Olympic's three biomes each enforce different rig caps — Hoh and Kalaloch hold 21-ft loops, Heart O' the Hills tolerates 35 ft, and Hurricane Ridge Road turns back anything over 30 ft well below the summit.
North Cascades
Most of North Cascades is roadless wilderness — Highway 20 and Newhalem Creek are the practical RV gateway, 35-ft cap, dry-camp. Colonial Creek opens late June after Skagit snowmelt.
Washington rules · last verified 2026-05-10
- State rental tax
- 9.5% · not collected by PickRV
- Min driver age
- 21+ std · 25+ Class A
- Gravel roads
- Allowed — no restriction
- Generator quiet
- 22:00-07:00
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