San Geronimo · Marin County · CA
Poison Spring Road is a 0.2-mile trail near San Geronimo, in Marin County, CA. It climbs 31 ft and descends 139 ft, between 1,411 ft and a high point of 1,519 ft. Mapped for hiking, trail running.
All Marin County trailsMarin County hikingTrails near San GeronimoCA trails
Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.