Mud River is a 67-mile-long tributary of the Guyandotte River, located in western West Virginia. The river has a rich history, as it was once used by Native Americans for fishing and hunting. In the early 1900s, the river was used for transportation of coal and timber. The hydrology of Mud River is heavily influenced by its surrounding terrain, which is characterized by steep slopes and narrow valleys. The river is fed by runoff from the surrounding mountains, as well as snowmelt in the winter months. The river provides water for agricultural purposes, and is also popular for recreational activities such as fishing and kayaking. Despite its importance, the river faces threats from pollution and erosion, highlighting the need for conservation efforts.