Coal Creek · Boulder County · CO
Twin Sisters Peak Trail is a 1.3-mile moderate trail near Coal Creek, in Boulder County, CO. It climbs 812 ft and descends 26 ft, between 7,953 ft and a high point of 8,740 ft. Moderate difficulty: calculated from 13% avg grade · 2.5 mi round trip, 851 ft climb. Mapped for hiking, trail running.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.