Pratt Lake Trail


Alpine Scramble - Pratt Lake Trail

Pratt 5099

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  • Technical 3, Strenuous 3
  • Mileage: 11.0 mi
  • Elevation Gain: 3,300 ft
8:00 AM at Granite Mtn Trailhead
This is a change from the original Wright Mountain Scramble due to current avalanche hazard. Pratt Mountain is west of Snoqualmie Pass and has superb views. At this time most of the approach will be on trail and the latter part will be snow.

Drive E on I-90 to exit 47. Cross over freeway and follow the road to the left a short distance to the Granite Mountain trailhead. Distance is 50 miles from Seattle 65th Park & Ride and the driving time is just less than 1 hr.

- Ice Axe is always required.
- Snowshoes with aggressive points on the bottom such as MSR.
- Crampons. They will probably NOT be required. I will check and let you know if they are recommended.
- Avalanche shovel and/or probe. These are good to bring but not required.
- Forest Passes are required for this trailhead.

From the parking lot we will hike up the Granite Mountain trail, taking a left at the first junction and following the trail several miles until we reach a point above Ollallie Lake. From there we drop down and cross the outlet, then climb the slope on the other side. At the top we gain the summit ridge and follow on good snowpack to the summit.

Here is a link to a printable map of the area:,-121.49025&t;=t2&z;=14

You can zoom in on this map, Press Ctrl-PrntScr to copy the screen Image to the clipboard, paste it into the Microsoft Paint program, crop it to size, and print. Please note I will email a map including the route prior to the trip.

Scramble or Basic Climbing students must have completed their snow field trip before taking this trip and must be in good physical shape.


Pratt Lake Trail

Required Equipment

Required Equipment

The Ten Essentials
Trip Reports