Alamo · Contra Costa County · CA
Lower Vortex is a 1.0-mile expert (double black) trail near Alamo, in Contra Costa County, CA. It climbs 778 ft and descends 101 ft, between 454 ft and a high point of 1,131 ft. The surface is ground. 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.