Reelfoot Lake is a shallow natural lake located in the northwest portion of U.S. state of Tennessee. Much of it is really more of a swamp, with bayou-like ditches (some natural, some man-made) connecting more open bodies of water called basins, the largest of which is called Blue Basin. Reelfoot Lake is noted for its bald cypress trees and its nesting pairs of bald eagles. It is the site of Reelfoot Lake State Park.