Pratt Mountain

Alpine Lakes Wilderness, Washington

Start Exploring
Pratt Mountain


  • Avalanche gully.- Pratt Mountain
  • View to other side of I-90.- Pratt Mountain
  • Stream crossing on the ascent to Pratt Mountain.- Pratt Mountain
  • Split in the trail to Pratt Mountain.- Pratt Mountain
  • Looking back at Olallie Lake.- Pratt Mountain
  • Island Lake Basin.- Pratt Mountain
  • A cornice on the trail to Pratt Mountain.- Pratt Mountain
  • Steep slope along the trail.- Pratt Mountain
  • Looking toward Olallie Lake.- Pratt Mountain
  • Island Lake.- Pratt Mountain
  • Granite Mountain lookout.- Pratt Mountain
  • The Pratt Lake Basin.- Pratt Mountain
  • - Pratt Mountain
Overview + Weather
Great views. Solitude.
Steep slopes. High winds. Hard to navigate.
Alpine Lakes Wilderness, WA
Pets allowed: 
Recommended Equipment:
Ice axe / crampons
Alpine climbing NCCS rating: 
Grade III
Net Elevation Gain: 
3,100.00 ft (944.88 m)
Parking Pass: 
NW Forest Pass
Preferable Season(s):
Winter, Spring, Summer, Fall
Total Distance: 
10.80 mi (17.38 km)
Trailhead Elevation: 
1,920.00 ft (585.22 m)
Current Local Weather:
Adventure Description

Adventure Description


Pratt Mountain offers great views of surrounding lakes and peaks. Along the trail there are views of Pratt Lake, Island Lake, Olallie Lake, and Chair Peak's south face.

The hike starts out at the same trailhead as Granite Mountain, but it splits 1 mile in. As the trail for Granite Mountain goes to the right, the moderate ascent for Pratt Lake goes to the left. The trail ascends at a moderate grade for another 3.5 miles, where its splits right for Pratt Lake and Talapus to the left. After the turn right to Pratt Lake, the trail steepens. Steep slopes here present potential avalanche danger.

Around 4.8 miles in, the trail splits again, this time for Pratt Lake and Island Lake. Follow the the sign left to Island Lake. The trail gets hard to navigate here, especially in the snow. Continue along the tree covered ridgeline. Arrive at a clearing around 5.5 miles in. Beyond and above is a steep scramble in the summer or mountaineering in the winter. At this point, an ice axe would be needed during the winter.

The summit of Pratt Mountain is just another 0.5 miles away. There are also views of views of Island Lake, Granite Mountain Lookout, and Chair Peak along the way.

Updates, Tips + Comments

Updates, Tips + Comments

Field Guide

Field Guide

Location + Directions

Location + Directions

Nearby Camping + Lodging

(18 within a 30 mile radius)

Nearby Adventures

(111 within a 30 mile radius)

Adventure Community

Adventure Community

Who Wants To Do It
3 Members
Who's Done It
1 Members
Submission by
26 Adventures Explored
26 Adventures Published

Newsletter Signup

Join the Outdoor Project Community

Get access to essential planning materials and information for your next adventure. Take a few seconds to join the community. It’s FREE!

Free Field Guides + Maps

Post Updates, Tips + Comments

Organize + Track Your Adventures

Insider Detailed Info, News + Benefits

Custom Driving Directions

Recommended Campsites, Photos + Reservation Info