Glacier National Park

Belly River Trail to Poia Lake

moderate Solitude SeekersWildlife WatchingBackcountry Enthusiasts
12.8 mi Distance
1,400 ft Elevation Gain
6-8 hours Estimated Time
roundtrip Trail Type

What to Expect

This is Glacier's quiet side — the kind of trail where you might see more grizzlies than people, and that's not an exaggeration. Starting from the Belly River trailhead near the Chief Mountain border crossing, you'll drop into a broad, glacier-carved valley that feels genuinely remote within the first mile. The trail follows the Belly River through dense lodgepole and spruce forest before climbing steadily toward Poia Lake, gaining about 1,400 feet over the full out-and-back — enough to feel in your legs but never punishing. The forest eventually opens to reveal the lake sitting in a dramatic cirque, ringed by steep headwalls that hold snow well into August. Wildlife is the headline here: this corridor is one of the park's most reliable spots for grizzly sightings, moose near the river, and the occasional wolverine track. This trail rewards hikers who value solitude and wildness over Instagram-ready overlooks.
Solitude SeekersWildlife WatchingBackcountry EnthusiastsPhotographersExperienced Hikers

Safety Advisory

Grizzly bear activity is exceptionally high in this drainage. Travel in groups of three or more, make noise on blind corners, and know how to use your bear spray. Solo hiking here is strongly discouraged by park rangers.

The trail is remote with no cell service and limited foot traffic — if something goes wrong, self-rescue may be your only option for hours. Carry a first aid kit and consider a personal locator beacon.

Stream crossings can be dangerous during spring runoff and after heavy rain. Water levels change dramatically within hours, and what was ankle-deep in the morning can be thigh-deep by afternoon.

Trail Details

Distance 12.8 miles round-trip
Elevation Gain 1,400 ft
Difficulty moderate
Estimated Time 6-8 hours
Trail Type roundtrip
Pets Not allowed
Season Year-round
Trailhead Belly River Trail to Poia Lake

Pro Tips

Trail Tip

Start early — the Chief Mountain International Highway gate opens seasonally and can create bottlenecks. Hitting the trailhead by 7:30 AM puts you ahead of any midday company and gives you the best wildlife viewing light.

Trail Tip

Carry bear spray accessible on your hip, not buried in your pack. This valley has some of the highest grizzly density in the lower 48, and encounters are a real possibility, not a theoretical warning.

Trail Tip

The Belly River crossing can run high and fast through mid-July in heavy snowpack years. Trekking poles and water shoes earn their weight here — check with the Belly River Ranger Station for current conditions before committing.

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