The Inlet Swamp Drainage District, comprising 32000 acres of rich muck land, lies in Lee County Illinois, between the Chicago and Northwestern Railway, the Illinois Central Railway and the Chicago, Milwaukee and St. Paul Railway. The District is fifteen miles long and from one to five miles wide. The watershed has approximately five times the area of the swamp, and in early days, as much as one-half the thirty two thousand acres was under water for practically the entire year. It was not unusual in the Spring, for the swamp to be under from two to five feet of water. The point where Inlet Swamp ends and Green River begins, is known as the Inlet. This is a limestone ledge four miles wide and of unknown depth, which acts as a dam at the lower end of the swamp --Description and History of the District, page 2
