Chattanooga is a city in Tennessee, United States. It is the county seat of Hamilton County and the fourth-largest city in the state. Chattanooga is located on the Tennessee River, at the southern end of the Appalachian Mountains.
Chattanooga has a long and rich history. It was founded in 1839 as a railroad town, and it played a key role in the American Civil War. After the war, Chattanooga became a major industrial center, and it is now home to a number of Fortune 500 companies.