This was taken along Rte #81 north of Harrisburg, looking north towards Marysville and Fort Hunter. That structure is the Norfolk Southern railroad bridge.
And this shot was taken from Rte. #30, the Lincoln Highway, looking south toward Wrightsville. The structure is State Rte. #462 between Wrightsville and Columbia.
Finally, here's a picture of the bridge from which I took the previous shot, looking east toward Columbia.
Occasionally in the grip of winter's damp and chill I like to look back and remember that not so long ago the days were warm and the trees were green and soon they will be so again.