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The Tennessee River is formed at the confluence of the Holston and French Broad rivers on the east side of present-day Knoxville, Tennessee. From Knoxville, it flows southwest through East Tennessee toward Chattanooga before crossing into Alabama.
Chattanooga and the Tennessee Valley are located between the Cumberland Mountains to the west and the Appalachian Mountains to the east. Local topography is complex with a number of minor valleys and ridges rising as much as 500 feet in the city and 1,200 feet to the north and southwest.