The very end of the video shows the crossover bridge over the Susquehanna River at Owego, NY. This bridge was unique as it was a curved bridge! This took the DL&W tracks over the river and onto the Erie tracks.
From what I have read the song was written about a lake in the Adirondack Mountains of New York State. Tony Romeo, who wrote the tune, lived in Pleasant Valley, NY, and had stated many times it was written about the NY lake where he visited as a young man. I've been there many times, it is lovely...
Their is no greater love than to lay down ones life for another...