Bayou Bartholomew

Bayou Bartholomew is the longest bayou in the world, meandering approximately 364 miles (586 km) in the U.S. states of Arkansas and Louisiana.

It starts northwest of the city of Pine Bluff, Arkansas, in the Hardin community, winds through parts of Jefferson, Lincoln, Desha, Drew, Chicot, and Ashley counties in Arkansas, and Morehouse Parish, Louisiana, and eventually enters the Ouachita River after passing the northernmost tip of Ouachita Parish, near Sterlington, Louisiana. The bayou serves as the primary border separating the Arkansas Delta from the Arkansas Timberlands.