Mount Si via the main trail out-and-back — Mount Si Natural Resources Conservation Area, Washington — TrekReadyMount Si via the main trail out-and-back
Mount Si Natural Resources Conservation Area, Washington
Terrain
trailout and backsteep climbsustained climbrootsrockseasonal snowpack carry
Where these numbers come from
Reviewed 2026-09-03 from Washington DNR — Mount Si NRCA. Check current conditions, closures and permits before you go.
(official map, verified 2026-09-03)