An aerial view shows "The Great Two Mile Curve," at Romeoville, ten months after the filling of the Chicago Sanitary and Ship Canal. The location of a recently removed passenger bridge can be seen in the lower right corner of the photo.
An aerial view shows the Bear Trap Dam in operation. Photo caption: "1586-15 1-20-1900 Bear Trap Dam in operation. Depth of water at crest of Dam 2 ft."