Iron Horse Regional Trail: This trail is the most prominent of all the Alamo hiking areas. It follows the Old Southern Pacific Railroad and is allows a variety of users, including bicyclists, hikers, equestrians, and dog-walkers. From Stone Valley Road north to: Hillgrade Ave – 1.5 miles Rudgear Road – 2.5 miles Newell Ave – 3.5 miles Ygnacio Valley Road – 4.5 miles Pleasant Hill BART
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