Pinchbeck Marsh was also part of Deeping Fen, but following the failure of the work carried out under the 1801 Act to effectively drain the area, an act of Parliament was obtained in 1832 to create a separate district, called the Spalding and Pinchbeck District, or Blue Gowt, as water from the 6000 acres feeds into the River Glen from the Blue Gowt Drain.