Mill Valley · Marin County · CA
Marlin Fire Road is a 0.2-mile easy (green) trail near Mill Valley, in Marin County, CA. It climbs 156 ft and descends 39 ft, between 200 ft and a high point of 317 ft. Mapped for hiking, trail running, mountain biking, equestrian.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Updated 2026-07-21. Open the interactive map for routing, weather, and offline use.