What's the route through the four Rocky Mountain parks?

Start at Denver. RMNP via Trail Ridge Road. North via WY-287 + US-26 to Grand Teton. Yellowstone south entrance. Loop Yellowstone. East entrance via Cody and Beartooth Highway to MT. North via I-90 + US-89 to Glacier. About 1,500 miles total. Allow 21 days minimum for a meaningful experience at each park.

Can I do this trip in a Class A?

Yes for most segments. Going-to-the-Sun (Glacier) excludes Class A over 21 ft — use US-2 alternate.

What's the route through the four Rocky Mountain parks?

Start at Denver. RMNP via Trail Ridge Road. North via WY-287 + US-26 to Grand Teton. Yellowstone south entrance. Loop Yellowstone. East entrance via Cody and Beartooth Highway to MT. North via I-90 + US-89 to Glacier. About 1,500 miles total. Allow 21 days minimum for a meaningful experience at each park. • Denver to Glacier: ~1,500 miles • 21 days minimum • Reservations 6 months out • Best June-September • Multiple high passes

RegionCited official sources

Rocky Mountain RV loops — CO, WY, MT

RMNP + Yellowstone + Grand Teton + Glacier. The full Northern Rocky circuit.

The Rocky Mountains contain four marquee national parks accessible by RV-friendly highways: Rocky Mountain NP (CO), Grand Teton NP (WY), Yellowstone NP (WY/MT/ID), and Glacier NP (MT). The integrated multi-park route is one of the great American RV journeys.

Photo: Grand Teton National Park, Wyoming — on the northern Rockies loop.

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By PickRV·Cited primary sources·Updated May 18, 2026

Day-by-day suggested

Days 1-3: Denver → Estes Park → Trail Ridge Road → Grand Lake.

Days 4-5: Grand Lake → Cheyenne → Lander (rest day).

Days 6-8: Lander → Grand Teton (Jackson Lake, Colter Bay).

Days 9-15: Yellowstone — multiple campground stops.

Days 16-17: Cody via Beartooth.

Days 18-19: Bozeman → St Mary.

Days 20-21: Glacier (east side + Going-to-the-Sun shuttle if big rig).

National Park Service — find a parknps

What NPS + state tourism doesn't tell you

Regional travel guides typically focus on individual destinations. PickRV's regional guides focus on the multi-day RV-route reality — how to connect destinations efficiently, where to camp at intervals, what fuel + supply discipline matters.

The four parks reserve at different intervals + difficulty. Plan reservations as soon as the window opens.

NPS Yellowstone: Park.[source]
NPS Grand Teton: Park.[source]
NPS Glacier: Park.[source]
NPS Rocky Mountain: Park.[source]

Frequently asked questions

Can I do this trip in a Class A?: Yes for most segments. Going-to-the-Sun (Glacier) excludes Class A over 21 ft — use US-2 alternate.

Authoritative sources

National Park Service — find a park National Park Service
America's Byways — Federal Highway Administration scenic byway program FHWA National Scenic Byways
Recreation.gov — federal campground + permit reservations Recreation.gov

Verify current conditions with state DOT 511 systems before departure. RV restrictions may change. Weather may close roads.

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Rent an RV in the 3 states Rocky Mountain RV loops crosses

This drive spans more than one state. Pick up where the road starts, or wherever the trip suits you.

Not sure which state yet? Search every RV on PickRV.

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