| Pentwater River | |
|---|---|
 | |
| Location | |
| Country | United States |
| Physical characteristics | |
| Source | |
| • location | Michigan |
The Pentwater River is a 10.8-mile-long (17.4 km)[1] river in Oceana County, Michigan, in the United States. It rises east of Hart at the inflow of the South Branch Pentwater River and flows northwest to Lake Michigan at the village of Pentwater.
- ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed November 21, 2011