Big Muddy River upstream end (OSM) to Big Muddy River downstream end (OSM)
● Big Muddy River upstream end (OSM)
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● Big Muddy River downstream end (OSM)
Big Muddy River
IL • US
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The Big Muddy River is a 156-mile-long (251 km) river in southern Illinois. It joins the Mississippi River just south of Grand Tower. The Big Muddy has been dammed near Benton, forming Rend Lake.
The Big Muddy has a mud bottom for most of its length.
156.0 mi total
1 sections
2 access points
0 camps
0 rapids
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Click any point for details. Sections without stored geometry are drawn as straight put-in → take-out lines — actual courses follow the river.