Portola Valley · San Mateo County · CA
Hamms Gulch Trail is a 2.8-mile hard trail near Portola Valley, in San Mateo County, CA. It climbs 951 ft and descends 2,058 ft, between 668 ft and a high point of 1,809 ft. Hard difficulty: calculated from 21% avg grade · 5.6 mi round trip, 3,027 ft climb. The surface is dirt. Mapped for hiking, trail running, equestrian.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.