Altona · Boulder County · CO
Heil Valley Ranch is a 17.3-mile easy trail near Altona, in Boulder County, CO. It climbs 556 ft and descends 1,544 ft, between 5,390 ft and a high point of 6,386 ft. Easy difficulty: calculated from 2% avg grade · 34.6 mi round trip, 2,206 ft climb. Mapped for mountain biking.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.