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Ptarmigan Traverse route map
ExpertPoint to Point

Ptarmigan Traverse

Marblemount, Washington

26.0 mi

Distance

12,904 ft

Elev. Gain

5h 28m

Est. Time

Point to Point

Route Type

Expert

Difficulty

About This Trail

Imported description
This is the famous and amazing Ptarmigan Traverse, in the North Cascades of Washington State, which starts near Marblemount. Except for the first few hours on the approach, and on the last day’s exit, this is a serious alpine traverse, which crosses 5 glaciers, traverses cliffs, and involves at times complex route finding. It should only be attempted by experienced mountaineers with knowledge of glacier travel, crevasses rescue, steep snow/ice terrain, rock scrambling, route-finding, etc. Second, while this route, which runs N-S, can in theory be done in either direction, going from North to South is the most reasonable way to do this trip, as it would be much more fatiguing, less aesthetic, and more difficult and dangerous from South to North. This is because all the glaciers are on the north sides of ridges and peaks, so going from north to south allows one to get a full view of the glaciers to be crossed and plan a route twixt the crevasses, while one would be descending all the glaciers if going from south to north, thus unable to see many crevasses till too close to plan an efficient continuous route twixt them. Further, a north-end start begins higher and allows one to rapidly gain the alpenlands, while a south-end start would require an inordinately long approach with much more elevation gain through woods while carrying the trip's heaviest packs. In short, don't even consider a south-end start. Third, this traverse can be done in 5 moving days, and skiers have reportedly done the entire traverse in a single day. However, it is recommended to take seven days, following a format of 2 moving days, followed by 1 rest day, then again 2 moving days and 1 rest day, then the long final slog out and into the netherworld. This allows the body to recuperate and gain strength on the rest days, making the moving days much more enjoyable. It can be done anytime the road is open, which is typically between mid June and early November.

Trail Conditions

Trail Conditions

Unknown

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Elevation Profile

Min:478 ft
Max:2,367 ft
3,933 ft
4,573 ft
478 ft1,108 ft1,737 ft2,367 ft0.0 mi7.7 mi15.3 mi23.0 mi30.6 mi

Trail Details

Route Type
Point to Point
Surface
Dirt

Official sources & verification

Managed by National Park Service

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Source of truth

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  • Operator:360-854-7200
  • Address:810 State Route 20 · Sedro-Woolley, WA · 98284
We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

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Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Hunt context

This trail crosses hunting units

During hunting seasons, wear blaze orange and check regulations — see the Washington hunting page

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