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 .
American River 50 Mile Endurance Run
The American River 50 Mile Endurance Run, or AR50, is a 50-mile (80.47 kilometer) ultramarathon beginning in Sacramento, California and ending in Auburn, California. The event is held annually in April.