Mount Si Old Trail


Day Hike - Mount Si Old Trail

Little Si/Big Si combo

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: 9.5 mi
  • Elevation Gain: 4,500 ft
  • Pace: 1000 ft/hr

Meet at the Little Si trailhead at 9AM

We will start off ascending Little Si, and on the descent of Little Si we will join up with Boulder Garden Loop to Si old trail.  This will be a moderately paced hike, roughly 1000/ft per hour or the speed where our slowest hiker is comfortable. Make sure to pack a headlamp!  The trade off for a not super early start this time of year is that you do the last couple of miles by headlamp. Covid vaccine required to participate in this hike, no exceptions.  


Mount Si Old Trail

Required Equipment

Required Equipment

The Ten Essentials

  • Navigation
  • Headlamp
  • Sun protection
  • First aid
  • Knife
  • Fire
  • Shelter
  • Extra food
  • Extra water
  • Extra clothes
Trip Reports