Glacier National Park closed St. Mary Campground to tents, hammocks, and soft-sided campers on Aug. 21, 2026, and left it open to hard-sided RVs and trailers only, according to the Flathead Beacon. The closure is indefinite. The reason is bears — black and grizzly, both active around the campground as serviceberries ripen and hyperphagia kicks in ahead of hibernation.

If you’ve been following our bear coverage this year — the Yellowstone spring bear roundup, the bear-dog conflict study out of BYU — you might expect this to be another “leash your dog, know the rules” story. It isn’t, and that’s what makes it worth a post of its own. Dogs are already banned from every trail and every inch of backcountry in Glacier. This closure doesn’t touch that. It hits car campers and RV travelers instead, which is the group of dog owners who usually get to treat Glacier as the easy, dog-friendly option.

Quick Verdict: What Changed and What to Do

Detail	What You Need to Know
What closed	St. Mary Campground — tents, hammocks, soft-sided pop-up campers
What’s still open	Hard-sided RVs, trailers, and truck campers
Effective date	Aug. 21, 2026
Duration	Indefinite — no lift date announced
Why	Increased grizzly and black bear activity; heavy serviceberry harvest around the campground draws bears in late summer
Dogs on GNP trails/backcountry	Banned, full stop — this closure changes nothing there
Dogs at GNP frontcountry campgrounds	Still allowed, 6-foot max leash, including at St. Mary if you’re in a hard-sided rig
Food storage	Bear-proof storage required regardless of camper type — this didn’t change

Why This Story Is Actually About Your Dog

Most Glacier bear news doesn’t move the needle for dog owners, because dogs can’t go where the bears are anyway. Trails, backcountry, off-trail cross-country routes — all off-limits to dogs under Glacier’s pet regulations, leash or no leash. A grizzly sighting on the Highline Trail is a hiker problem, not a dog problem, because your dog was never allowed on the Highline Trail to begin with.

St. Mary is different. It’s one of Glacier’s thirteen frontcountry campgrounds — the actual short list of places in this park where a leashed dog is welcome. Roads, parking areas, picnic spots, and these thirteen campgrounds are the whole map for dogs here. Take away a car-camping option at one of the park’s most popular sites, on the east side near the Going-to-the-Sun Road entrance, and you’ve taken away real estate from the one category of Glacier trip a dog can actually join.

What the Closure Actually Restricts

The park isn’t shutting St. Mary down. It’s restricting the shelter type. Per park spokesperson Autumn Sifuentes, quoted in the Beacon’s reporting: “The park may temporarily restrict or close campgrounds when bear activity increases in an area to reduce the potential for human-bear conflicts.”

Not allowed right now:

• Tents
• Sleeping hammocks
• Soft-sided pop-up campers (exposed canvas, even if the frame is solid)

Still allowed:

• RVs and motorhomes
• Trailers
• Truck campers and other hard-sided units
• Pop-up campers only if the canvas sections are fully closed and zipped

This isn’t a new tool for Glacier. The park used the identical hard-sided-only restriction at St. Mary in past seasons, and Many Glacier Campground has seen similar restrictions in prior summers over food-conditioned bears. St. Mary earns this more than most Glacier campgrounds because of its serviceberry bushes — a bear food source that ripens right in and around the developed area, not tucked away in the backcountry where it’d stay out of sight.

Is Glacier National Park Still Open to Dogs?

Yes. The closure only affects camper type at one campground, not Glacier’s overall pet policy. Leashed dogs (6-foot maximum leash) remain allowed at all thirteen frontcountry campgrounds, on park roads, in parking areas, and on the paved bike path between Apgar and West Glacier. Dogs remain banned from every trail, all backcountry terrain, lake shores outside developed areas, and park buildings — that hasn’t changed and won’t.

Why Bears Are Bunching Up Near a Campground Right Now

Late August in Glacier means hyperphagia — the pre-hibernation phase where bears need to eat close to around the clock, packing on fat before den season. A bear in hyperphagia isn’t foraging for fun. It’s running a caloric deficit it has to close before winter, and that pressure makes bears less cautious about human activity than they’d normally be.

St. Mary’s serviceberry patches are a magnet for exactly that behavior. Serviceberries ripen in late summer, they’re calorie-dense, and they happen to grow thick around a developed campground instead of somewhere remote. Put a hungry bear and an easy food source in the same 100 yards as a row of dome tents, and the park doesn’t have a lot of good options besides restricting what “shelter” means there until bear activity settles down.

What to Actually Do If You Had a St. Mary Trip Planned

• Booked a tent site at St. Mary? Call the park at 406-888-7800 or check your reservation status — you may need to switch campgrounds or shelter type, not cancel outright.
• Have an RV, trailer, or hard-sided camper? You’re not affected. St. Mary is open to you, dog included, on leash.
• Traveling with a soft-sided pop-up? It counts as soft-sided under this restriction unless the canvas panels zip fully closed. Check before you drive out expecting to set up as usual.
• Bear-proof storage is non-negotiable at St. Mary regardless of camper type. Dog food counts as bear attractant just like your own food — it goes in the hard-sided vehicle or a bear locker, not left out at a picnic table or in a soft cooler by the tent pad.
• Consider a different frontcountry campground if you need a tent option. Glacier has thirteen total; St. Mary is only one. Check current conditions on each before you commit, since bear activity can shift restrictions elsewhere too.
• Don’t assume this is temporary on any particular timeline. The park hasn’t given a lift date, and history says these restrictions sometimes run for the rest of a season.

Camping With Dogs in Bear Country: The Baseline Rules

However you’re camping at St. Mary or anywhere else in Glacier, a few things don’t change with your shelter type:

1. Keep your dog leashed at all times in the campground — Glacier’s 6-foot max applies at the campsite, not just on the drive in.
2. Store all food, including dog food and treats, in bear-proof containers or your hard-sided vehicle when it’s not actively being eaten.
3. Never leave your dog’s food bowl out overnight, even scraped clean. Residual scent is enough to draw interest.
4. Keep your dog inside your vehicle or hard-sided shelter at night, not tied outside a tent — this matters even more now that soft shelters are off the table at St. Mary specifically.
5. Report bear sightings to a ranger immediately, and don’t let your dog approach or bark at a bear you spot near camp.

If you want the fuller picture on how a dog changes your risk profile around bears generally — not just camping — our breakdown of the BYU dog-bear conflict study is worth reading before this trip, and our national park dog rules roundup covers how Glacier’s restrictions compare to other parks you might be considering instead.

Where Else to Camp With Dogs Near Glacier

If a tent trip was the plan and St. Mary won’t work right now, Glacier’s other frontcountry campgrounds are still tent-friendly as of this writing — check current status before you drive, since bear activity elsewhere in the park can trigger the same restriction with little notice. Many Glacier, in particular, has a documented history of similar bear-driven restrictions in past seasons, so don’t assume it’s automatically the fallback either. Call ahead or check the park’s current conditions page rather than betting a long drive on last season’s information.

Bottom Line

This isn’t a story about whether you can bring your dog to Glacier. You still can, on the same 6-foot leash, at the same thirteen campgrounds, on the same roads and parking areas as always. It’s a story about whether your shelter qualifies at one specific, heavily-used campground while bears work through a hyperphagic feeding push on serviceberries growing right in the developed area.

Hard-sided rig, you’re set. Tent, hammock, or soft-sided pop-up, you need a plan B — either a different campground or a different trip — until Glacier lifts the restriction, and there’s no date yet for when that happens.

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Closure details from the Flathead Beacon, reporting as of Aug. 21, 2026. Pet policy details from Glacier National Park’s official pet regulations. Check current campground status directly with the park at 406-888-7800 before any trip — bear-driven restrictions can change with little notice.