The Casselman River then forms a natural boundary between Black and Addison Townships on the southeast and Milford, Upper Turkeyfoot, and Lower Turkeyfoot Townships on the northwest, flowing past Casselman, Markleton, and Fort Hill along its way to Confluence.
The Casselman River delineates a natural boundary between Black and Addison Townships on the southeast and Milford, Upper Turkeyfoot, and Lower Turkeyfoot Townships on the northwest. It flows past Casselman, Markleton, and Fort Hill as it heads to Confluence.