| Thornapple River | |
|---|---|
| Origin | NE Sawyer County, Wisconsin in Chequamegon National Forest |
| Mouth | Chippewa River near Bruce, Wisconsin |
| Basin countries | United States |
| Mouth elevation | 1,060 ft (320 m)[1] |
| River system | Mississippi River |
Thornapple River is a river in Sawyer and Rusk counties in the U.S. state of Wisconsin.
The Thornapple rises in northeast Sawyer County in the Chequamegon National Forest at .[1] It flows primarily south-southwest into the Chippewa River near Bruce at .[1]
Among the tributaries of the Thornapple, there are two streams named Little Thornapple River. One is a right-side tributary entirely within Sawyer County near the boundary with Rusk County, flowing from primarily to the west and slightly south into the Thornapple River at .[2] The other Little Thornapple River is a left-side tributary that rises in southern Sawyer County at , less than 2 miles (3.2 km) west-southwest of the mouth of the other Little Thornapple River. The second Little Thornapple, flows primarily to the south and southwest into Rusk County and empties into the Thornapple River at , approximately 4 miles (6.4 km) from the mouth of the Thornapple near Bruce.[3]
Largely undeveloped, the river is a popular destination for canoeing and kayaking[4]. Small rapids and good fishing conditions are attractions.