Middle Branch Union River
| Middle Branch Union River | |
|---|---|
| Location | |
| Country | United States |
| Physical characteristics | |
| Source | |
| • location | Maine |
| Mouth | |
• location | East Branch Union River |
• coordinates | 44°47′03″N 68°17′04″W / 44.78420°N 68.28445°W |
• elevation | 195 feet (59 m) |
| Length | 14 mi (23 km) |
| Basin features | |
| Progression | E. Br. Union R. – Graham Lake – Union River – Union River Bay |
The Middle Branch Union River is a river in Hancock County, Maine, United States. From the outflow of Lower Middle Branch Pond (44°51′57″N 68°13′35″W / 44.8659°N 68.2265°W) in Aurora, the river runs 13.8 miles (22.2 km) west and south to its confluence with the East Branch of the Union River in Osborn.