Whetstone River

General data
- Water type: River
- Progression: Minnesota River -> Mississippi River -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Continental
- Continents: North America
- Countries: United States of America
Description
The Whetstone River is a 12.7-mile-long (20.4 km)[1] tributary of the Minnesota River, in northeastern South Dakota and a very small portion of western Minnesota in the United States. Via the Minnesota River, it is part of the watershed of the Mississippi River.