Clinch Mountain is a mountain ridge in the U.S. states of Tennessee and Virginia, lying in the ridge-and-valley section of the Appalachian Mountains. From its southern terminus at Signal Point peak, which lies at the intersection of Knox, Union and Grainger counties near Blaine, Tennessee, it runs in a generally east-northeasterly direction to Garden Mountain near Burke's Garden, Virginia. It separates the Clinch River basin, to the north, and the Holston River basin, to the south.