The Yalobusha River rises in
Chickasaw County, northwest of the town of
Houston, and flows generally west-southwestwardly through
Calhoun,
Grenada and
Leflore Counties, past the town of
Grenada. At
Greenwood it joins the
Tallahatchie River to form the Yazoo River. Much of the Yalobusha's course through Calhoun County has been straightened and
channelized; this section of the river is also known as the "Yalobusha River Canal." In Grenada County, the river is impounded by a
U.S. Army Corps of Engineers dam to form
Grenada Lake, which collects the Yalobusha's largest tributary, the
Skuna River. The Yalobusha at
Grenada, MS averages a discharge of 2,436 cubic feet per second. ==Major tributaries==