San Rafael · Marin County · CA
Bong is a 0.2-mile moderate trail near San Rafael, in Marin County, CA. It climbs 102 ft and descends 34 ft, between 923 ft and a high point of 1,014 ft. Moderate difficulty: calculated from 13% avg grade · 0.4 mi round trip, 142 ft climb. The surface is dirt. 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.