6.7 mi from the trailheadUpper Oso Campground
Campground · California
15.7 mi out & back · 6,018 ft gain · 3,402 ft high point · Very hard
California · U.S. Forest Service
Tunnel spans 15.7 miles out and back with 6,018 feet of climbing, passing Bubb's Peak and reaching multiple viewpoints near Seven Falls and Gibraltar Reservoir.
6,018 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. Download the trail and feature data.
Campground · California
14.6 mi one way · 4,104 ft gain · Very hard
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Thu: Mostly Sunny · wind 5 mph NNE