Fall River (Big Thompson tributary)
General data
- Name: Fall River (Big Thompson tributary)
- Water type: River
- Progression:
- Climates: Temperate
- Continents: North America
- Countries: United States of America
The Fall River is a 17.1-mile-long (27.5 km) tributary of the Big Thompson River in Larimer County, Colorado. The river's source is near the Alpine Visitor Center in Rocky Mountain National Park. It flows down a canyon and over Chasm Falls before a confluence with the Big Thompson in Estes Park.