Big Muddy River River, Casey Creek, the Middle Fork of the Big Muddy and Crab Orchard Creek. Smaller tributaries include Town Creek, Kinkaid Creek, and Shoal Creek. The basin includes Kinkaid Lake, Rend Lake, Crab Orchard Lake, Devil's Kitchen Lake, Little Grassy Lake and Cedar Lake. The northern limit of the watershed is north of Kell, about into Marion County. This is on Casey Creek, which might be properly considered the main reach of the river. Cities and towns in the Big Muddy watershed include: The Big Muddy drains areas of the following counties: Big Muddy River The Big Muddy River is a
Southern Illinois River-to-River Conference approached by Benton, Herrin, Harrisburg, and West Frankfort for membership; these four schools were concerned over their small size relative to the other members of the South Seven Conference (where all four were then located) and sought out a conference more in line with their size. Massac County (then an independent school) was approached about becoming a member, and in 1993 the Southern Illinois River-to-River Conference was formed. At the start of the 2010-2011 school year Carterville left the Black Diamond Conference to join the Southern Illinois River-to-River Conference. Chester High School has taken their place in the Black Diamond