South Fork Cache la Poudre River

South Fork Cache la Poudre River
Basin features
Main source	40°29′35″N 105°38′43″W / 40.49306°N 105.64528°W / 40.49306; -105.64528
River mouth	Confluence with Cache la Poudre 6,552 ft (1,997 m) 40°41′11″N 105°26′50″W / 40.68639°N 105.44722°W / 40.68639; -105.44722Coordinates: 40°41′11″N 105°26′50″W / 40.68639°N 105.44722°W / 40.68639; -105.44722
Progression	Cache la Poudre— South Platte—Platte— Missouri—Mississippi

The South Fork Cache la Poudre River is a 27.0-mile-long (43.5 km) tributary of the Cache la Poudre River in Larimer County, Colorado. The river's source is in the Mummy Range of Rocky Mountain National Park.