North Fork American River
The North Fork American River is the longest branch of the American River in Northern California. It is long from its source at the crest of the Sierra Nevada, near Lake Tahoe, to its mouth at Folsom Lake northeast of Sacramento. Prior to the construction of Folsom Dam the river was about longer making for a total length of .
Buffalo River (Tennessee)
The Buffalo River is the longest unimpounded river in Middle Tennessee in the United States, flowing through the southern and western portions of that region. It is the largest tributary of the Duck River and is used for canoeing, especially in its middle section. The river is named for the Buffalo fish which was abundant when the first European settlers arrived.