Coal Creek · Boulder County · CO
Gross Reservoir Road is a 2.3-mile easy (green) trail near Coal Creek, in Boulder County, CO. It climbs 676 ft and descends 15 ft, between 7,289 ft and a high point of 7,957 ft. The surface is unpaved. Mapped for hiking, trail running, equestrian, ohv.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.