Mill Valley · Marin County · CA
Horse Hill Fire Road is a 0.4-mile moderate trail near Mill Valley, in Marin County, CA. It climbs 8 ft and descends 308 ft, between 60 ft and a high point of 362 ft. Moderate difficulty: calculated from 16% avg grade · 0.7 mi round trip, 316 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.