Fremont · Alameda County · CA
Hidden Valley Trail is a 2.4-mile moderate trail near Fremont, in Alameda County, CA. It climbs 1,675 ft and descends 112 ft, between 381 ft and a high point of 1,943 ft. Moderate difficulty: calculated from 14% avg grade · 4.7 mi round trip, 1,807 ft climb. The surface is compacted. Mapped for mountain biking.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.