Yellowstone vs Glacier: Which Montana National Park is Better for RV Camping?

Montana has two of America’s most iconic national parks, and every summer thousands of RVers face the same question: Yellowstone or Glacier? If you have time for both, do both. But most people are working with a week or two of vacation, and the two parks offer fundamentally different RV camping experiences. Choosing the wrong one for your rig, your travel style, or your tolerance for logistical headaches can turn a dream trip into an expensive disappointment.

This is not a comparison of which park is more beautiful. Both are extraordinary. This is a practical, RV-specific breakdown of what it actually takes to camp at each park — the campground options, the rig size restrictions, the hookup situation, reservation strategies, crowd levels, and the details that determine whether your trip runs smoothly or falls apart on arrival day.

We have covered both parks in depth in our dedicated guides to RV camping at Glacier National Park and West Yellowstone RV parks. This article puts them side by side so you can make a decision with your eyes open.

Quick Comparison Table#

Here is how the two parks stack up across the criteria that matter most to RVers. The table gives you the overview; the sections below provide the context behind each row.

Criteria	Yellowstone	Glacier
In-park campgrounds	12 campgrounds, 2,000+ sites	4 reservation campgrounds, ~580 sites
Max RV length (in-park)	Varies by campground; many accommodate 30-40ft+	21ft towed limit on GTSR; most sites max 26-30ft
Full hookup campgrounds	None inside the park	None inside the park
Hookups nearby	6+ full-hookup parks in West Yellowstone (3 blocks to 15 min)	4+ full-hookup parks near West Glacier (2-10 miles)
Nightly cost (in-park)	$30-35/night	$20-30/night
Nightly cost (nearby private)	$80-167/night	$133-167/night
Season length	Late April – mid-October (Madison)	May 1 – September 29 (Apgar, longest)
Reservation system	Xanterra (NOT recreation.gov) for most campgrounds	Recreation.gov, 6-month rolling window
Cell signal (in-park)	Limited to none	Major coverage issues to no service
Cell signal (gateway town)	Excellent — all carriers in West Yellowstone	Good near West Glacier; poor inside park
Crowd intensity	4.9 million visitors/year — extremely heavy	3.1 million visitors/year — heavy but less than Yellowstone
Big rig friendliness	Moderate in-park; excellent at private parks	Poor in-park; good at private parks
Dump stations	Limited inside park (Fishing Bridge area)	Available at Apgar and Fish Creek
Elevation	6,200-7,800 ft (higher, colder nights)	3,200-4,500 ft (lower on west side)

Campground Options: Scale vs. Scarcity#

The most immediate difference between the two parks is sheer volume of camping capacity.

Yellowstone: More Campgrounds, More Sites, More Options#

Yellowstone operates twelve campgrounds totaling more than 2,000 individual sites. Five of these are managed by the concessionaire Xanterra Travel Collection and are reservation-based through yellowstonenationalparklodges.com. The remaining seven are managed by the National Park Service on a first-come, first-served basis during most of the season.

For RVers approaching from the Montana side, Madison Campground is the anchor. It sits 14 miles east of West Yellowstone at 6,800 feet elevation with 278 individual sites along the confluence of the Gibbon and Firehole rivers. Madison has no hookups, no showers, and flush toilets with cold water only — but it is the closest campground to the West Entrance and arguably the most coveted campground in the park. Elk graze through camp at dusk. The Madison River delivers blue-ribbon trout fishing from your site.

Other notable in-park options include Bridge Bay (432 sites, the park’s largest), Canyon (273 sites near the Grand Canyon of the Yellowstone), Grant Village (430 sites near Yellowstone Lake), and Fishing Bridge RV Park — the only campground in Yellowstone with hookups. Fishing Bridge provides full hookups (water, sewer, electric) and is reserved exclusively for hard-sided RVs due to grizzly bear activity. It is on the east side of the park, a long drive from the West Entrance, but it is the only game in town if you want to plug in inside Yellowstone.

The sheer number of campgrounds means you have more flexibility with Yellowstone. If your first-choice campground is full, there are alternatives. The first-come, first-served campgrounds give spontaneous travelers a fighting chance, especially in shoulder season. That kind of flexibility simply does not exist at Glacier.

Glacier: Fewer Options, Tighter Competition#

Glacier runs just four reservation campgrounds on recreation.gov: Apgar (194 sites), Fish Creek (178 sites), Many Glacier (~109 sites), and St. Mary (size varies by loop). That is roughly 580 reservable sites for a park that receives over three million visitors per year. The math is brutal.

Every one of those campgrounds is dry camping — no hookups, no showers (except Apgar), and limited to no cell service. Many Glacier is rated “No Service” on recreation.gov across 394 reviews. Apgar and Fish Creek are rated “Major Cell Coverage Issues.” Only St. Mary on the east side has “Good Coverage,” making it the sole option for RVers who need connectivity.

The scarcity creates a reservation pressure cooker. Glacier uses recreation.gov’s 6-month rolling window plus a 4-day short-term release. If you want a site at Fish Creek for July 15, you need to be online exactly six months earlier. Miss that window and your odds drop dramatically. This is a far more stressful booking process than Yellowstone’s, where the larger number of campgrounds and the first-come, first-served options provide a safety net.

For a complete breakdown of every campground option, see our Glacier National Park RV camping guide.

Rig Size and Access: This Is Where Glacier Gets Painful#

If you tow a fifth wheel, drive a Class A, or own anything longer than 25 feet, this section matters more than everything else in this article combined.

Yellowstone: Accommodating for Most Rigs#

Yellowstone is relatively friendly to larger RVs. The park roads are wide, well-maintained, and generally built to handle modern recreational vehicles. Individual campground sites vary — some loops favor tents and small trailers while others accommodate rigs up to 40 feet — but you can find sites for big rigs at multiple campgrounds if you book carefully.

Fishing Bridge RV Park explicitly caters to RVs and accepts hard-sided units only. Madison, Bridge Bay, Canyon, and Grant Village all have sites that handle Class A and Class C motorhomes in the 30-40 foot range. You will need to check individual site descriptions during the booking process (the Xanterra system lets you filter by RV length), but the bottom line is that Yellowstone does not systematically exclude large rigs.

The main road system throughout Yellowstone — the Grand Loop Road — has no vehicle length restrictions. You can drive your 40-foot Class A from one end of the park to the other without worrying about clearance, width limits, or white-knuckle mountain switchbacks. The roads are busy and the traffic can be maddening (more on that below), but they are physically accessible.

Glacier: The Strictest Vehicle Limits of Any Major National Park#

Glacier is a completely different story. Going-to-the-Sun Road prohibits vehicles and vehicle combinations longer than 21 feet or wider than 8 feet (including mirrors) between Sun Point and Avalanche Campground. This is the park’s signature scenic drive, and if you are over those limits, you cannot drive it in your RV. Period.

Inside the campgrounds, the National Park Service explicitly states that most sites “will not accommodate towed units over 21 feet.” A limited number of sites at Apgar, Fish Creek, and St. Mary can handle towed units between 26 and 30 feet, but these are the exception. Many Glacier warns that most sites cannot accommodate slide-outs at all. If you run slides, the NPS recommends St. Mary instead.

Here is how it breaks down by rig type:

• Class B van or truck camper under 21ft: Full access to every campground and Going-to-the-Sun Road. This is the ideal rig for Glacier.
• Travel trailer 21-30ft: Select sites at Apgar, Fish Creek, and St. Mary. Cannot drive GTSR — you will need to unhitch and drive your tow vehicle over the road separately.
• Class A, Class C, or fifth wheel over 30ft: You are effectively locked out of every in-park campground. Private parks outside the boundaries are your only option.
• Any rig with slide-outs: Problematic at Many Glacier. Workable at St. Mary and select sites elsewhere.

This is the single biggest differentiator between the two parks for RV camping. If you own a large rig and want to camp inside the park, Yellowstone wins by default because Glacier will not physically accommodate you.

Gateway Town Options: Hookups, Showers, and Civilization#

Neither park offers hookups inside their boundaries (with the exception of Yellowstone’s Fishing Bridge). The real hookup decision comes down to the private parks in the gateway communities.

West Yellowstone: Dense, Convenient, Expensive#

West Yellowstone packs more RV parks per square mile than almost anywhere in the Northern Rockies. The Yellowstone Grizzly RV Park is the largest with 222 full-hookup sites — including 40 premium pull-throughs that handle rigs up to 80 feet — just four blocks from the West Entrance. Buffalo Crossing, Wagon Wheel, Pony Express, and West Gate KOA round out the in-town options, all offering full hookups with 20/30/50-amp service.

Prices reflect the captive audience: $80-167 per night is the range during peak season, with the Grizzly averaging $137-150 per night. For quieter alternatives at slightly lower prices, Hebgen Lake options like Yellowstone Holiday and Madison Arm Resort sit 8-15 miles from the West Entrance.

The major advantage of West Yellowstone is walkability. You can stroll to restaurants, grocery stores, and the park entrance from most RV parks. Cell signal is excellent across all carriers. After a day of no-service wilderness inside the park, returning to full connectivity at camp is a genuine comfort.

West Glacier and Surrounding Area: Fewer Options, Similar Prices#

The private park cluster around Glacier’s West Entrance is smaller. West Glacier KOA Resort is the flagship — 165 sites with full hookups (30/50 amp), pull-throughs, a pool, hot tubs, and a bar called the Bear Garden. It sits three miles from the West Entrance and charges $133-167 per night in peak season. Glacier Peaks RV Park, West Glacier RV Park, and Glacier Meadow RV Park offer additional full-hookup options at varying price points.

On Glacier’s east side, options are thinner. The towns of St. Mary and Babb have limited RV facilities, though some smaller parks operate seasonally. If you are camping on the east side, St. Mary Campground inside the park is the most practical option — and it has the best cell coverage of any Glacier campground.

One strategy worth considering: base yourself at a Flathead Lake area park in Bigfork or Polson. You get full hookups, lower prices, and access to Montana’s largest freshwater lake. The tradeoff is the 45-90 minute drive to the park entrance depending on your location. But if you are spending a week in the region and only visiting Glacier for two or three days, a Flathead Lake basecamp can save you significant money while offering a completely different experience on your off days.

Crowds and Reservation Difficulty#

Both parks are crowded. That is non-negotiable for any summer visit. But the texture of that crowding differs in ways that affect your daily experience as an RVer.

Yellowstone: More Visitors, But More Space to Absorb Them#

Yellowstone received 4.9 million recreation visits in 2023, making it one of the five most visited national parks in the country. The park covers 2.2 million acres — roughly the size of Delaware and Rhode Island combined — which means those visitors spread across a massive landscape. The Grand Loop Road system distributes traffic in a figure-eight pattern, so while Old Faithful and the Grand Prismatic Spring parking lots are genuinely chaotic from 10 AM to 4 PM, you can find relative solitude on early-morning wildlife drives through Lamar Valley or late-afternoon walks along the Firehole River.

The 2,000+ campsite capacity helps absorb demand, though peak-season reservations at popular campgrounds like Madison and Canyon still require advance planning. The first-come, first-served campgrounds fill by early morning in July and August — if you are counting on snagging a spot, arrive before 8 AM.

RV traffic on the Grand Loop Road is a constant reality. You will crawl behind other motorhomes. You will stop for bison jams. You will spend 30 minutes in an Old Faithful parking lot looking for a space long enough for your rig. This is not a park where you drive quickly between attractions.

Glacier: Fewer Visitors, But Far More Bottlenecks#

Glacier received 3.1 million visitors in 2023 — significantly fewer than Yellowstone, but compressed into a much smaller effective area. The park covers just under 1 million acres, but most visitor activity funnels through Going-to-the-Sun Road, which acts as a single narrow corridor through the park’s interior. When that road is full, it is full. There is no alternate route.

Glacier implemented a vehicle reservation system for Going-to-the-Sun Road in recent years (check the NPS website for current-year requirements). During peak hours in peak season, you may need a timed-entry reservation just to drive the road — on top of your campground reservation. This adds another booking layer that Yellowstone does not require.

The campground scarcity amplifies the crowd pressure. With only 580 reservable sites, competition for bookings is fierce. Many Glacier and Fish Creek campgrounds sell out within minutes of the booking window opening. If you miss the 6-month window for your target dates, your best fallback is the 4-day short-term release — but that requires flexibility and vigilance.

One silver lining: Glacier’s east side (St. Mary, Many Glacier) is consistently less crowded than the west side (Apgar, Fish Creek). If you are willing to approach from the east — entering through St. Mary and basing yourself on that side — you will encounter shorter lines, less traffic, and a slightly more relaxed atmosphere.

Scenery and Activities: Different Spectacles Entirely#

Both parks are among the most visually stunning places on the continent, but they deliver completely different experiences.

Yellowstone: Geological Theater#

Yellowstone is, at its core, a volcanic landscape. The park sits on top of a massive magma chamber, and the result is a concentration of geothermal features found nowhere else on Earth. Old Faithful, the Grand Prismatic Spring, Mammoth Hot Springs, and the Norris Geyser Basin are unlike anything at Glacier or any other national park.

The wildlife viewing is arguably the best in the lower 48. Lamar Valley is often called the “American Serengeti” for good reason — bison herds, wolf packs, grizzly bears, elk, and pronghorn are regular sightings. For RVers who enjoy wildlife photography or simply watching animals from the road, Yellowstone is unmatched.

The fishing is world-class. The Madison, Firehole, Gibbon, and Yellowstone rivers offer blue-ribbon trout streams accessible directly from campgrounds and roadside pullouts. If you fly fish, Yellowstone is a pilgrimage.

Hiking takes a back seat to the geothermal attractions for most visitors. There are excellent backcountry trails, but the signature Yellowstone experience is driving the loop, stopping at thermal features, and scanning for wildlife.

Glacier: Mountain Grandeur and World-Class Hiking#

Glacier is a mountain park. The scenery is defined by glacier-carved peaks, turquoise alpine lakes, dense old-growth forests, and dramatic elevation changes. Going-to-the-Sun Road — if you can drive it (remember, not in your big rig) — is widely considered the most scenic road in North America. The views from Logan Pass at 6,646 feet are genuinely breathtaking.

Where Glacier surpasses Yellowstone is hiking. The trail system here is on another level. The Highline Trail, Grinnell Glacier, Iceberg Lake, and Ptarmigan Tunnel are legitimately world-class hikes accessible from in-park campgrounds. Many Glacier in particular sits at the trailhead for some of the park’s best day hikes — it is the reason serious hikers fight for those campground reservations despite the rig size limitations and lack of cell service.

Wildlife is present — grizzly bears, mountain goats, bighorn sheep, moose — but sightings are less frequent and less predictable than at Yellowstone. Glacier’s wildlife is more likely to be spotted on trails than from the road.

Water activities center on Lake McDonald (west side) and St. Mary Lake (east side). Both are stunningly clear but extremely cold — these are glacial lakes, not swimming holes. Kayaking and canoeing are popular in calm conditions.

Who Should Choose Yellowstone#

Yellowstone is the better choice if you:

• Drive a large rig. Class A motorhomes, fifth wheels, and travel trailers over 30 feet will have a dramatically easier time at Yellowstone. The road system accommodates big rigs, and campground sites are available in sizes that Glacier simply cannot match.
• Want full hookups near the park. West Yellowstone’s dense cluster of RV parks means you can be plugged into 50-amp service three blocks from the entrance. The selection, pricing competition, and availability are all better than what exists near Glacier.
• Prioritize wildlife viewing. Yellowstone’s megafauna — bison, wolves, bears, elk — are more visible and more accessible than anything at Glacier. Lamar Valley alone justifies the trip.
• Are a fly fisher. The Madison, Firehole, and Yellowstone rivers offer trout fishing that draws anglers from around the world. You can fish from your campsite at Madison Campground.
• Want geothermal attractions. There is nothing like Old Faithful, Grand Prismatic, or Mammoth Hot Springs anywhere else on Earth. If this is your first national park trip, Yellowstone’s bucket-list attractions deliver an experience you cannot get at Glacier.
• Need more scheduling flexibility. The longer season (late April through mid-October), larger campground capacity, and mix of reservation and first-come, first-served options give you more ways to make a trip work on shorter notice.

For more details on where to stay, see our complete West Yellowstone RV parks guide.

Who Should Choose Glacier#

Glacier is the better choice if you:

• Drive a small rig. Class B vans, truck campers, and travel trailers under 21 feet get the full Glacier experience — including Going-to-the-Sun Road, which is the park’s crown jewel. The smaller campground sizes create a more intimate atmosphere than Yellowstone’s larger complexes.
• Are a serious hiker. Glacier’s trail system is categorically better than Yellowstone’s for day hiking. If you plan to spend most of your trip on trails, Glacier delivers hikes that are worth traveling across the country for.
• Want fewer crowds (relatively). Glacier sees 1.8 million fewer annual visitors than Yellowstone. The east side in particular — St. Mary, Many Glacier — offers a noticeably calmer experience.
• Prefer mountain scenery over geothermal features. Glacier’s glacier-carved peaks, alpine lakes, and dense forests create a different kind of beauty — more akin to the Swiss Alps than Yellowstone’s volcanic strangeness. If mountains move you more than hot springs, Glacier is your park.
• Value quiet and disconnection. The lack of cell service, the no-generator loops, the smaller campgrounds — Glacier forces you to unplug in a way that Yellowstone’s larger, more connected infrastructure does not. For some RVers, that is the entire point.
• Are combining with a Flathead Lake trip. Glacier pairs naturally with Flathead Lake camping for a week-long Montana itinerary that mixes national park hiking with lakefront relaxation. Yellowstone does not have an equivalent nearby lake destination.

For the complete campground breakdown, read our Glacier National Park RV camping guide.

Can You Do Both Parks in One Trip?#

Yes, but manage your expectations. Glacier and Yellowstone are separated by roughly 550 miles of driving — about 8 to 9 hours on I-90 and US-93 with no stops. That is a full travel day in an RV, more if you are towing.

The most practical approach is to split a two-week trip: one week at each park with the driving day in between. Route south through the Flathead Valley, pick up I-90 at Missoula, and head east to Bozeman before dropping south to West Yellowstone. You can break the drive with a night at one of the Bozeman area RV parks — a reasonable midpoint with full services, restaurants, and a college-town atmosphere worth exploring.

For a comprehensive state overview including both parks and everything in between, see our guide to the best RV parks in Montana.

The Bottom Line#

Yellowstone is the more accessible, more accommodating park for RV camping — especially for large rigs. It has more campgrounds, more sites, longer seasons, and a gateway town with an embarrassment of full-hookup options. It is also the park with the more iconic bucket-list attractions. If you are making one trip to Montana and you drive anything over 25 feet, Yellowstone is the pragmatic choice.

Glacier is the more intimate, more challenging, and — for many campers — more rewarding experience. It demands a smaller rig, more advance planning, and a willingness to forgo hookups and connectivity. In return, it delivers world-class hiking, stunning mountain scenery, and a level of wildness that Yellowstone’s higher visitor numbers have gradually worn down. If you travel in a van or small trailer and your idea of a perfect day involves eight miles of mountain trail rather than a geyser parking lot, Glacier is your park.

Neither choice is wrong. But the right choice depends on your rig, your priorities, and your willingness to plan. Now you have the data to make that call.