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 .
North Fork Flathead River
Although the North Fork is designated as a National Wild and Scenic River (1975) in the United States, its greater length in BC (, not including headwaters forks) is not. Water in the BC section remains relatively pure as there are no permanent residents or livestock in this drainage north of the border.