| Union River | |
|---|---|
 | |
| Location | |
| Country | United States |
| Physical characteristics | |
| Source | |
| • location | Michigan |
| Mouth | |
• location | 46°49′09″N 89°37′11″W / 46.81917°N 89.61972°W |
The Union River is a 5.5-mile-long (8.9 km)[1] river in Porcupine Mountains Wilderness State Park on the Upper Peninsula of Michigan in the United States. It is a tributary of Lake Superior.
- ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed February 3, 2012