| View KML View WKT | United States Rivers |
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Au Sable River - South Branch
| States | Michigan |
| Length | 51.6 miles |
| Watershed Length* | 52 miles |
| Mouth | Au Sable River ⤏ Lake Huron |
| GNIS | 1621679 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey