CHS 2 Hike

Field trip: Conditioning Hiking Series

CHS 2 Hike - Mount Si Old Trail

Mount Si via the Old Trail led at a CHS 2 pace. Here's a better way to hike Mt Si! Explore the quieter trails and classic Pacific Northwest forests of Mt Si. It's a steep trudge up old Mt Si trail, and then a more gradual descent down the Mt. Teneriffe, Talus Loop and Douglas Fir trails to return to the Little Si Trailhead.

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.
  • Strenuous
  • Challenging
  • Mileage: 10.0 mi
  • Elevation Gain: 4,200 ft
  • Pace: 2.-3.0 mph

Let's meet at Little Si Trailhead at 7:30am. Discover Pass required for parking. Pit toilet available at trailhead.

Please note we will have a service-dog-in-training on this hike.

This is a challenging hike that is designed to be a little easier on the knees by taking a steeper route up with a more gradual descent. This loop route tries to maximize less trafficked trails on Mt. Si.

We hope to stop at Garlic Crush in Issaquah for a post-hike outdoor meal for those interested (depending on Covid restrictions). We will not be stopping for an extended lunch on the hike, so bring plenty of snacks for the short breaks on the trail.


Mount Si Old Trail

Required Equipment

Required Equipment

Ten Essential Systems

  1. Navigation (map & compass)
  2. Sun protection (sunglasses & sunscreen)
  3. Insulation (extra clothing)
  4. Illumination (headlamp/flashlight)
  5. First-aid supplies
  6. Fire (waterproof matches/lighter/candle)
  7. Repair kit and tools
  8. Nutrition (extra food)
  9. Hydration (extra water)
  10. Emergency shelter (tent/plastic tube tent/garbage bag)
Trip Reports