Mount Si Main Trail


Trail Run - Mount Si Main Trail

Sunset views from Mt Si! Power hike up, run down. A great conditioner for climbers, scramblers, and runners. Also a good change to practice downhill running at night.

  • Moderate/Strenuous
  • Moderate
  • Mileage: 8.0 mi
  • Elevation Gain: 3,150 ft

Meet at the TH at 6pm.

This is a conditioning trail run with the idea of practicing power hiking up the hills and running downhill in the dark. We will maintain a steady pace stopping only at the top for a quick snack, before descending back to the cars at the TH.

At least part of the decent will be in the dark, so you need to have a headlight or some other light source.

I expect the total round trip time to be be between 2 & 2.5 hours.

When requesting leader's permission please let me know that you are comfortable being able to do this hike/run in 2 to 2.5 hours (1.5 hours up & 1 down).


Mount Si Main Trail

  • Red Marker
    47.488079, -121.723194
    47.4880785075 -121.723194123
  • Red Marker
    47.507691, -121.739775
    47.5076906111 -121.739774685
Required Equipment

Required Equipment

  • trail running shoes
  • headlight (or other light source)
Trip Reports