National park · West Glacier, MT
Vehicles and vehicle combinations longer than 21 feet (including bumpers) or wider than 8 feet (including mirrors), are prohibited between Avalanche Creek and Rising Sun.nps.gov, read Sep 24, 2026
Dump Station: Yes, Seasonalnps.gov, read Sep 24, 2026
St. Mary operates year-round.nps.gov, read Sep 24, 2026
One email when a Montana owner lists a rig for those nights.
PickRV
Published by PickRV
Official park page confirmed live on July 25, 2026.
Glacier National Park spans 1,583 square miles of carved-glacier valleys, alpine lakes, and Continental Divide peaks in northwest Montana. The park has 13 campgrounds, 7 of which take RVs of varying sizes. The single overriding RV constraint is Going-to-the-Sun Road: vehicles longer than 21 feet (including bumpers) or wider than 8 feet (including mirrors) are PROHIBITED between Avalanche Creek and Rising Sun, and rigs over 10 feet tall may have trouble with the rock overhangs west of Logan Pass (NPS, read 2026-09-24). This means most Class A motorhomes, all 5th wheels, and most travel trailers cannot drive the iconic road — you must shuttle, bike, or use a tow vehicle. Apgar + Fish Creek campgrounds (west side) and St. Mary (east side) take longer rigs.
The notes below are PickRV's editorial record. Only the figures in the strip at the top of the page, each with its link and date, were re-read on the park's own pages.
Glacier National Park stretches along the Continental Divide in northern Montana, where the Going-to-the-Sun Road threads 50 miles between alpine lakes, hanging valleys, and the namesake — though steadily retreating — ice. The east and west sides of the park feel like different landscapes, and crossing Logan Pass remains the central drive for most visitors.
Going-to-the-Sun Road typically opens in late June or early July and closes by mid-October; July and August bring the most reliable access but also timed-entry reservations on the busiest corridors.
Vehicles longer than 21 ft or wider than 8 ft are not allowed on Going-to-the-Sun Road between Avalanche Creek and Rising Sun; plan to base an RV at Apgar, Fish Creek, or St. Mary and use a tow vehicle or the park shuttle.
What the official site doesn't tell you
NPS publishes the 21ft/8ft/10ft GTSR limit but doesn't tell you the practical implication: 'big rig' families need to BASECAMP and rent a tow car/jeep to actually see Glacier — the shuttle is free but adds 90+ min/day to any itinerary. Smart play: stay 4-5 nights at Apgar, drive your tow vehicle (or rent a Jeep in Kalispell, $90/day) for the GTSR loop. Second: vehicle reservations (separate from camping) are required for entering the West entrance + GTSR daily during peak season — book 3 mo ahead OR enter before 6am. Third: Fish Creek campground is technically the 'lesser' option but the loop is RV-friendly with NO ban on bigger rigs (it's outside the GTSR restricted zone) — and the lake-shore access for fishing is better than Apgar. Fourth: cell signal in the park is sparse — Apgar has weak Verizon, St. Mary has none, Many Glacier has none. Download maps. Fifth: the most-overlooked side trip is North Fork (Polebridge, gravel road, takes 1+ hour from West Glacier) — bakery-cafe + zero crowds; sleeping in your rig at Bowman Lake is unforgettable.
Length + clearance
Dump + generator
Boondock alternative within 20-45 min — Polebridge is the off-grid favorite; gravel access road is rough
Flathead National Forest, dispersed sites along Hwy 2 + Polebridge area
Full season: June 15 - September 15 (peak; Going-to-the-Sun fully open)
Limited access: May + October (lower-elevation campgrounds open; GTSR partially open or closed)
Known closures:
Hidden — not on the official map
Polebridge Mercantile + Bowman Lake
1hr+ on gravel; pastry-shop legend, lake camping with no crowds
Two Medicine area (east side)
Underused; boat tour available; smaller campground but easier permit
Montana scenery around Glacier National Park
Landscapes from around Montana — the country you cross on a Glacier National Park RV trip.
This guide is provided for general informational purposes only. PickRV is not an insurer, legal advisor, or vehicle-safety authority. Trip planning, route selection, rig suitability, weather, and emergency decisions are the renter's responsibility. Always consult the rig manufacturer's owner's manual, your insurance provider, the U.S. National Park Service (nps.gov), NOAA / NWS weather alerts (weather.gov), state and local emergency-management agencies, and current local regulations before and during travel. Cost figures, season windows, road conditions, and fee references on this page are estimates as of May 2026 and vary by season, location, rig, carrier, and operator. Mentions of brand names, state-tourism marks, national-park feature names, or third-party programs are informational only and do not imply affiliation, sponsorship, or endorsement.
Per-state legal callout · MT
Standard Class D covers personal motorhomes under 26,001 lbs
Montana follows the federal standard: no CDL for personal motorhomes under 26,001 lbs GVWR. Out-of-state visitors honored with valid home-state license.
Montana MVD — Driver License · verified 2026-05-24
No mandatory boater education for adults; AIS inspection required
Montana has no mandatory boater-education law for adults. Every boat entering Montana waters from outside must pass an aquatic-invasive-species (AIS) inspection at official stations (FWP).
Montana FWP — AIS · verified 2026-05-24
Montana OHV decal required + helmet for under-18
Montana requires a state OHV decal on every OHV operated on public land. Riders under 18 must wear a DOT-approved helmet. National-forest OHV use additionally requires USFS Motor Vehicle Use Map (MVUM) compliance.
Montana FWP — OHV · verified 2026-05-24
0.08% BAC; open container in passenger area prohibited
Montana standard 0.08% BAC. MCA §61-8-460 prohibits open containers in passenger area of motor vehicle on highway. Living-quarters use while parked permitted.
Montana Code Annotated §61-8-460 · verified 2026-05-24
