Conditioner Hikes

Field trip: Intensive Basic Alpine Climbing Course

Conditioner Hikes - Mailbox Peak

Get in shape for those summer climbs

  • Thu, May 9, 2024
  • Seattle Climbing
  • Day Hiking
  • Adults
  • Very Strenuous, Snow Scramble, Winter Scramble
  • Challenging
  • Mileage: 11.2 mi
  • Elevation Gain: 4,100 ft


We will meet in the parking lot of the Mailbox trailhead, time TBD, take the old trail to the summit, and descend via old or new trail depending on group preference. Expect to descend at least partially in the dark. 

Discover Pass is required at this trailhead. 


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

10 Essentials

Trip Reports