Mailbox Peak


Winter Scramble - Mailbox Peak

Koppen Mountain is in the Teanaway. We will approach from the Johnson Creek trailhead for a trip of 10 miles with 3,700' of elevation gain.

  • Very Strenuous
  • Moderate
  • Mileage: 6.0 mi
  • Elevation Gain: 4,100 ft

To be arranged

While Koppen will go in a wide variety of conditions, a late change of destination is possible due to the prevailing weather, snow and road conditions forecast for the day of the trip.


Mailbox Peak

  • Green Trails Mount Si NRCA No. 206S

    Green Trails Middle Fork Snoqualmie No. 174SX

    Green Trails Bandera No. 206
  • 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