Ptarmigan Falls
Ptarmigan Falls, Glacier National Park, in a pine meadow with snow-dusted mountains rising behind the trees.
Ptarmigan Falls in Glacier National Park cascades over rocky ledges through a forested gorge.
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Ptarmigan Falls

Natural Attr★★★★☆
Last Updated: December 2025

Type

Geological Formation

Accessibility

Strenuous; not wheelchair accessible

Best Season

Late June–September

Busiest Season

July and August

Features

300-ft waterfall; hanging valley; glacially carved granite walls

Elevation

6,900 ft

Overview

About This Attraction

A white curtain of Ptarmigan Falls pours over a sheer lip, the cascades framed by pale granite along the Grinnell Glacier Trail. Morning light makes the water sparkle as it drops into a hanging valley carved by ice over millennia. This is a glacial waterfall—the direct result of Pleistocene glaciation and differential erosion.

Quick Facts

Type

Geological Formation

Elevation

6,900 ft

Access

Strenuous; not wheelchair accessible

Main Features

300-ft waterfall; hanging valley; glacially carved granite walls

What You'll See

Ptarmigan Falls cascade; Grinnell Glacier Trail vistas; talus slopes; granite cliffs

What Makes It Special

Glacial waterfall formed by differential erosion from a hanging valley; lies within the Grinnell Glacier Trail corridor

Best Time to Visit

July and August bring the strongest flow from snowmelt and are the busiest months; the trails are generally snow-free then. Late June can also have high water volumes, though some high-elevation sections may still be snowed in. For photography, aim for the morning or late afternoon when the light is softer and glare is reduced; midday sun can wash out the spray.

Safety Considerations

Gravity hazards from steep drops; no safety barriers at the falls; extremely cold water; bears in area; stay on trail and use bear spray

Visitor Tips

  • Arrive before 8am; Grinnell Glacier Trailhead parking fills quickly.
  • Expect a strenuous 7-mile round trip; allocate 4–6 hours.
  • Water is not available on the trail; carry ample water or filtration.
  • Bear spray recommended; stay alert and travel in groups.
  • There are no barriers at Ptarmigan Falls; keep distance from cliff edges.
  • Cell service is unreliable along the Grinnell Glacier Trail; download maps offline.
ℹ️ Data Sources

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