Black Diamond · King County · WA
Holy Roller is a 0.9-mile easy trail near Black Diamond, in King County, WA. It climbs 80 ft and descends 135 ft, between 590 ft and a high point of 676 ft. Easy difficulty: calculated from 5% avg grade · 1.7 mi round trip, 209 ft climb. The surface is unpaved. Mapped for hiking, trail running, mountain biking.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.