Martinez · Contra Costa County · CA
Hal Olsen Founders Trail is a 0.6-mile trail near Martinez, in Contra Costa County, CA. It climbs 109 ft and descends 229 ft, between 628 ft and a high point of 803 ft. The surface is dirt. 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.