Cumberland River control and the diversion of the Clover Fork around the city of Harlan. In addition, the river was diverted through a mountain cut in Loyall, Kentucky. In late April and early May 2010, due to the 2010 Tennessee floods, the river overflowed its banks and flooded Nashville and Clarksville, Tennessee. The downtown area was ordered to evacuate. Cumberland River The Cumberland River is a major waterway of the Southern United States. The river drains almost of southern Kentucky and north-central Tennessee. The river flows generally west from a source in the Appalachian Mountains to its confluence with the Ohio River
Big South Fork of the Cumberland River the third largest tributary of the Cumberland River, and is free flowing for a distance of approximately before being affected by the headwaters of the lake. The terrain furthest upstream near the confluence is the most rugged, with reliefs of as much as . This area is characterized by dendritic draining patterns and narrow gorges, with valleys strewn with large boulders fallen from cliffs above. Major formations include natural arches, mesas, chimneys, cracks and rock shelters. The terrain becomes less rugged as the river travels northward, with reliefs of between and . Soil in the area is divided between two