St. Marys River
| Use attributes for filter ! | |
| Length | 120 km |
|---|---|
| Province/State | Ontario |
| Michigan | |
| ⁃ average | 2,135 m3/s (75,400 cu ft/s) |
| Source | Whitefish Bay |
| Cities | Bay Mills Township |
| Mouths | Lake Huron |
| North Channel | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 1021867 |
About St. Marys River
The St. Marys River, sometimes written as the St. Mary's River, drains Lake Superior, starting at the end of Whitefish Bay and flowing 74. 5 miles southeast into Lake Huron, with a fall of 23 feet. For its entire length it is an international border, separating Michigan in the United States from Ontario, Canada.
