NORTH DAKOTA STATE UNIVERSITY - FARGO, N D
CASS COUNTY, N.D.
When a neck of a meandering river is finally cut off, the river's flow is diverted through the cutoff. The abandoned meander loop is left as an oxbow lake. Through time, and particularly during times of flood, sediments will infill the oxbow lake depression. Eventually, the lake will change to a swamp or marsh, and then to a low, looping land surface (meander scar).
The oxbow lake in this photograph is located along the fairways of Fargo's Edgewood Golf Course. As local golfers may attest, this lake today receives more than just sediments!