Avalanche Lake Trail

Overview

Avalanche Lake is popular because it delivers a lot for modest effort: a shaded climb through old‑growth cedar and hemlock to a stunning cirque lake rimmed with multiple waterfalls. Expect roughly 5.5–6.0 miles total, out and back (including the Trail of the Cedars approach), with about 700–800 feet of gain. Most hikers take 2.5–3 hours of moving time, plus whatever you’ll want to linger at the shoreline.

Trail Experience

You’ll start on the flat, boardwalk-style Trail of the Cedars through an ancient grove—think mossy trunks, filtered light, and the feel of a rare inland temperate rainforest. Soon the path tilts up alongside Avalanche Creek and its gorge; it’s well‑used but rooty and rocky in places. As you near the lake, the grade eases and the views open. At the shore, you’ll see a classic glacial bowl with clear water and several ribbons of falls dropping from the cliffs. Those cascades are fed by high-country snow and ice (the glacier itself isn’t visible from the lake). Many hikers continue along the right-hand lakeshore for fewer people and closer waterfall views.

Past storms and avalanches have knocked down timber in spots, creating occasional peek‑through vistas you wouldn’t have 20 years ago. It’s a small reminder you’re in a dynamic landscape shaped by ice, wind, and gravity.

Logistics

Trailhead parking is at the Avalanche Picnic Area/Avalanche Campground along Going‑to‑the‑Sun Road on the park’s west side, just past Lake McDonald. This is one of Glacier’s busiest lots—arrive very early (pre‑7 a.m. is common) or ride the park shuttle to the Avalanche Creek stop. There’s a vault/composting toilet at the trailhead. Some hikers report a toilet partway up or near the lake, but don’t count on it. No pets on this trail.

In peak summer, vehicle reservations are required to drive this corridor during certain hours—check the current season’s rules before you go.

Best Time to Hike

June through October is the typical window, with early mornings offering the calmest water, cooler temps, easier parking, and quieter shores. Afternoons bring crowds and can be breezier at the lake; mosquitoes can also pick up near the shoreline in summer. If you’re chasing photos, aim for an early start and plan a lakeside break as the light creeps down the walls.

Safety & Gear

You’re in bear country—carry bear spray, make noise, and hike in a group if you can. Temporary closures for wildlife do happen; check trail status day‑of. Footing is uneven with roots and rocks; wear real hiking shoes. Pack layers (the lake can feel notably cooler and windy), water, snacks, and bug repellent. The first ~0.5 miles on the boardwalk are accessible; beyond that, the Avalanche Lake segment is not suitable for wheelchairs or strollers.

Worth It?

Yes—this is a high‑reward, approachable Glacier classic. It’s crowded, but the experience holds up. If you want a bit more solitude without adding big miles, continue along the lakeshore past the initial beach for better waterfall angles and fewer people.