Alpine Scramble - Mount Si Old Trail


Alpine Scramble - Mount Si Old Trail

Let's start the weekend off with a fun rock scramble up Haystack to soak in the views! First priority to scrambling students needing a graduation scramble.

COVID-19: Learn about our most up-to-date guidance for participants and leaders on our COVID-19 Response page. All participants and leaders must agree to the COVID-19 Code of Conduct before participating in this Mountaineers activity.
  • Moderate/Strenuous, Strenuous 3, Technical 3
  • Moderate
  • Mileage: 8.0 mi
  • Elevation Gain: 3,400 ft

07:30am ready to go at the Little Si Trailhead. Discover Pass required for parking. More details to follow in an email to go out by Friday evening.

The trailhead is at the 2nd parking lot after the bridge on Mt. Si Road. The two parking lots are very close together.  There is a restroom by the trailhead in the main parking lot -- we are meeting here.  If this main (2nd as you drive in) parking lot is full, drive back to the first parking lot (the overflow lot) and walk from there to the trailhead parking lot on the connecting trail/pathway.  The Mt. Si Road is reached by exiting I-90 at 436th Ave SE (exit 32), turning left (north) at the end of the exit, continuing to the traffic circle, head west, and then turn right (north) in a short distance onto the Mt. Si Road.  

Please be on-time by allowing extra time to walk from the overflow parking lot in case the main parking lot is full. 

This will be a moderately-paced steeper hike up the Old Trail of Mount Si.  At the end of the trail, we will continue up and over the rocks to the backside of Haystack where we will scramble to the very top of Mount Si.  This is a very fun rock scramble with some exposure but very doable. The views should be amazing while we enjoy an early lunch.

Participants should be fit enough to hike the trail in a 2 hour-ish standard. Any questions, contact leader.

First priority through Wednesday to scrambling students who need a graduation scramble. On Thursday others may join.


Mount Si Old Trail

Required Equipment

Required Equipment

  • The Ten Essentials
  • Helmet
  • Mountaineering Boots or Approach Shoes for scramble. Closed-toe trail shoes okay for trail portion.
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