High Quality Content by WIKIPEDIA articles! The Wolf River is a 40.3-mile-long (64.9 km) river in the U.S. states of Tennessee and Kentucky that rises at the base of the Cumberland Plateau in Fentress County, Tennessee and flows westward for several miles before emptying into the Obey River at the Dale Hollow Reservoir. The river is part of the Cumberland River drainage basin, and flows primarily in Middle Tennessee and southern Kentucky. Via the Cumberland and Ohio rivers, it is part of the Mississippi River watershed. It is not to be confused with the Wolf River of West Tennessee which flows into the Mississippi at Memphis.