An ex-Pennsy caboose brings up the rear of a ballast train as it wends its way westward on the Columbia & Port Deposit Branch in the vast amphitheater of the Susquehanna Valley. The train is crossing the Conestoga River on the unique 1904-built double bridge, which also carried the Atglen & Susquehanna Branch high overhead. Today, trains still ply the "Port Road," but the A&S has been turned into a rail-trail on either side of the high bridge. There's some hope for the high bridge being opened to pedestrian traffic in the next few years.