Winter Scramble - Bismarck Peak


Winter Scramble - Bismarck Peak

A breathtaking tour along windswept ridge crests that culminate in a helicopter view of Tumac Mountain and its ~80 adjacent lakes. A very strenuous scramble of ~5500’ gain (over 16 miles), with the last bit on the out-and-back to Pear Butte.

  • Sat, May 4, 2024
  • Seattle Alpine Scrambling Subcommittee - Winter Scrambling
  • Scrambling
  • Adults
  • Strenuous 5, Technical 4
  • Challenging
  • Mileage: 16.0 mi
  • Elevation Gain: 5,500 ft
  • High Point Elevation: 7,585 ft

Arranged via email.

Please refrain from requesting leader’s permission until the week prior to signup opening.

This challenging ~5500’/16 mile clockwise traverse is made less so by early morning shade on the Mount Aix trail, afternoon shade on the Pear Butte trail, and their respective trailheads being just a few hundred yards apart.  Although we will only come to within ~2.5 miles of Tumac (and ~1000’ above its lakes), this is a very good situation owing to the lakes’ very active insect population (can you say mosquitoes?).  Only for folks with excellent conditioning.

It’s a 3 hour drive from the Seattle area so attendees may prefer to drive over the evening before and car camp (plentiful spots).   This may be especially appreciated on the drive home after a long and tiring day.  Photos from past outings to this area can be seen here.


Bismarck Peak

  • Green Trails Goat Rocks William O Douglas Wilderness No. 303S

    Trails Illustrated Goat Rocks, Norse Peak & William O. Douglas Wilderness Areas

    Green Trails Bumping Lake No. 271

    USGS Bumping Lake
  • See full route/place details.
Required Equipment

Required Equipment

Check with leader for any additional group gear or required equipment specific to trip location

Trip Reports