Iron Horse Regional Trail

The profile is essentially flat — 84% of the 6.6 miles sits under a 1% grade, for 16 ft of total gain. You finish 125 ft below the start, so an out-and-back saves the climbing for the return.

The route passes Len Hester Park at mile 3.4. Marked facilities along the route include drinking water.

The Iron Horse Regional Trail is a rail trail in the East Bay Area in California. This trail is located in inland central Alameda and Contra Costa counties, mostly following a Southern Pacific Railroad right of way established in 1891 and abandoned in 1977. The two counties purchased the right of way at that time, intending to use it as a transportation corridor; the Iron Horse Trail was first established in 1986. In 2003, BART proposed to also use the right-of-way for a DMU line from Walnut Creek station to Tracy via Pleasanton.

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At 6.7 miles, it is the 2nd longest of 39 trails mapped in Contra Costa County.