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 .
South Fork American River
The South Fork of the American has approximately eight sections of boatable whitewater ranging from class II to class V. The most commonly run section of river is the class III stretch between Chili Bar Dam and Folsom Lake.