North Fork Cache la Poudre River
 The North Fork Cache la Poudre River (locally called the North Fork) is a tributary of the Cache la Poudre River approximately 59.2 miles (95.3 km) long in north central Colorado in the United States. It drains a mountainous area of north central Larimer County northwest of Fort Collins on the western side of the Laramie Foothills.It rises in remote northwestern Larimer County in the foothills of the Roosevelt National Forest east of the Medicine Bow Range.