Portola Valley · San Mateo County · CA
Blue Oak Trail is a 0.6-mile hard trail near Portola Valley, in San Mateo County, CA. It climbs 199 ft and descends 368 ft, between 701 ft and a high point of 906 ft. Hard difficulty: calculated from 19% avg grade · 1.2 mi round trip, 580 ft climb. Mapped for hiking, trail running.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.