Aerial view of Towanda, Pa. and railroad bridge.

Towanda, Pa. Bradford Co.

Dining Hall, Starrucca House. Susquehanna Depot, Pa. On the line of the Erie Railway.

Switchback Mt. Jefferson Plane.

Starrucca Viaduct, length 1200 feet, height 110 feet. "On the line of the Erie Railway."

Starrucca Viaduct, length 1200 feet; height 110 feet ...

Lower Gordon Plane, Schuylkill County.

Ringtown Bridge, height 135 feet, length ...

The great Kinzua Bridge near Alton, Pa.

Kinzua Viaduct 301 ft. high B. R. & P. Ry.