sentences:  It is named for Gen. Lewis Cass, 2nd Territorial Governor of Michigan and later U.S. Secretary of War under President Andrew Jackson.According to the 2010 census, the county has a total area of of which (or 99.35%) is land and (or 0.65%) is water.The Wabash River flows westward through the county, and is joined by the Eel River in Logansport.