Oxbow lake?

An oxbow lake is a U-shaped lake that forms when a wide meander of a river is cut off, creating a free-standing body of water. An oxbow lake is a U-shaped lake that forms when a wide meander of a river is cut off, creating a free-standing body of water. An oxbow lake starts out as a curve, or meander, in a river. What Is An Oxbow Lake? An oxbow is a crescent-shaped lake lying alongside a winding river. Watch An Oxbow Lake Form: Ucayali River: 1985 - 2013. Oxbow lake, small lake located in an abandoned meander loop of a river channel.