Big Muddy River The Big Muddy was not covered by the Wisconsin Glacier, about 70,000 to 10,000 years before present. However, during the melting of that glacier, the level of the Mississippi River was much higher. Water backed up into the Big Muddy Basin, forming a lake much like the artificial Rend Lake but covering a larger area. The ancient lake silted in, forming a flat bottom. After the melting of the Wisconsinan glacier, the level of the Mississippi dropped, allowing the lake to drain. A new channel formed within the old lake bed. This channel meandered in the flat bottom of the
Muddy Creek (Lamine River) of Sedalia. The stream passes south of the community of Newland and enters the Lamine River just west of the Pettis-Cooper county line four miles north-northwest of Clifton City at . Muddy Creek was so named on account of its muddy water. Muddy Creek (Lamine River) Muddy Creek is a stream in Johnson and Pettis Counties in the U.S. state of Missouri. It is a tributary of Lamine River. The stream headwaters arise in southeastern Johnson County just east of the community of Sutherland and Missouri Route 23 at . The stream flows northeast and enters Pettis County about three