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
Cumberland County, Pennsylvania summer of 1863, Confederate troops marched through the Cumberland Valley, briefly occupying much of Cumberland County. In the 20th century, the suburbs of Harrisburg, Pennsylvania, the state capital, expanded extensively into eastern Cumberland County. Carlisle also developed suburbs in adjoining townships. According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.9%) is water. It has a hot-summer humid continental climate ("Dfa") and its hardiness zone is 6b except in much of the eastern portion where it is 7a. The area code is 717 with an overlay of 223. As of