South Fabius River

The Fabius River (pronounced FAY-bee-us) is a 3.5-mile-long (5.6 km)tributary of the Mississippi River in northeastern Missouri in the United States. It is formed near its mouth by the confluence of the North Fabius River and the South Fabius River. The North Fabius River also flows through southeastern Iowa. The Middle Fabius River joins the North Fabius 8.9 miles (14.3 km) upstream of that river's mouth.

Each of the three rivers have been subjected to substantial straightening and channelization.

According to tradition, the Fabius River is named for the Roman consul Quintus Fabius Maximus Verrucosus. However, the State Historical Society of Missouri suggests Fabius actually was the name of a French pioneer in the area.

The North Fabius River, about 109 miles (175 km) long, is the longest of the three forks and rises near Moulton in southwestern Appanoose County, Iowa. It flows generally southeastwardly through Davis County in Iowa and Schuyler, Scotland, Knox, Clark, Lewis and Marion counties in Missouri, past the towns of Memphis and Monticello, both in Missouri. In its upper course it collects two short tributaries known as the North Fork North Fabius River and the South Fork North Fabius River.

The Middle Fabius River, about 76 miles (122 km) long, is formed in Scotland County by the confluence of the North Fork Middle Fabius River and the South Fork Middle Fabius River, both of which rise in Schuyler County. It flows generally southeastwardly through Knox and Lewis counties, and joins the North Fabius River in southeastern Lewis County.

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