Big Muddy River Here the outline of the Wisconsinan Era lake bed is evident in what were the northern reaches of the ancient lake, where the lake bed was only a few hundred feet wide. The steep Illinoian hills are suddenly truncated where they meet the flat bottom of the Wisconsinan Era lake bed. Here the tributaries of the Big Muddy are tiny, intermittent streams, meandering though these narrow valleys at the headwaters. The Big Muddy basin contains a significant portion of the planet's coal reserves. Most of this is hidden under its deep mud. At a few places the river has eroded
Fox River (Little Wabash tributary) Fox River (Little Wabash tributary) The Fox River is a tributary of the Little Wabash River in southern Illinois. It rises in Jasper County to the southeast of Newton and flows south past Olney, then joins the Little Wabash at the northeast corner of Edwards County, near Mt. Erie. The river is in length. There is a smaller "Fox River" that is a tributary of the Wabash River in southern Illinois, entering the Wabash near New Harmony, Indiana. The following cities, towns and villages are in the Fox River watershed: The following counties are at least partially drained by the