10.5 mi from the trailheadTinkham Campground
Campground · Washington

6.4 mi out & back · 3,591 ft gain · 3,981 ft high point · Very hard
From Little Si Trailhead
Washington · OpenStreetMap contributors
Mount Si Old Trail summits Mount Si from Little Si Trailhead. The 6.4-mile out and back route climbs 3,591 feet to a viewpoint and the 3,981-foot peak.
3,591 ft of gain round trip.
The closest places to sleep, measured from the trailhead.
Ranked the same way, within twenty-five miles.
What the trail reaches, measured from the start.
The route at the trailhead. Drag with two fingers, or hold a key to zoom.
Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.
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Sun: Light Rain · wind 1 to 9 mph WSW