10.7 mi from the trailheadWest Boulder Cabin
Campground · Montana

21.7 mi out & back · 8,487 ft gain · 9,101 ft high point · Very hard
Via South Fork Deep Creek, Davis Creek, and Blacktail Creek (10.5 mi)
In Gallatin National Forest · Montana · U.S. Forest Service
This 21.7 mi out and back reaches Blacktail Lake via South Fork Deep Creek, Davis Creek, and Blacktail Creek in Gallatin National Forest, climbing 8,487 ft to 9,101 ft.
8,487 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.
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Mon: Partly Sunny · wind 6 to 16 mph SSW