10.5 mi from the trailheadTinkham Campground
Campground · Washington

8.8 mi out & back · 4,578 ft gain · 4,545 ft high point · Very hard
From Little Si Trailhead via Little Si and the Mount Si Old Trail (3.2 mi)
Washington · OpenStreetMap contributors
Blowdown Mountain Trail summits Blowdown Mountain from Little Si Trailhead using Little Si and Mount Si Old Trail. The 8.8-mile out and back route climbs 4,578 feet.
4,578 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 hike from its start, the approach dashed. 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.
Campground · Washington
15.5 mi out & back · 4,804 ft gain · Very hard
Wenatchee National Forest · Camp 4 mi away
Hikes that read like this one, wherever they are.

6.4 mi out & back · 3,591 ft gain · Very hard
Washington · Camp 10 mi away

3.9 mi out & back · 1,417 ft gain · Moderate
Washington · Camp 10 mi away

7.7 mi out & back · 3,433 ft gain · Very hard
Washington · Camp 9 mi away
4.2 mi out & back · 1,602 ft gain · Moderate
Wenatchee National Forest · Camp 11 mi away
Sat: Patchy Frost then Mostly Sunny · wind 0 to 5 mph NE