| View KML View WKT | United States Rivers |
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Blackduck River
| States | Minnesota |
| Length | 51.5 miles |
| Watershed Length* | 175 miles |
| Mouth | Red Lake River ⤏ Red River of the North |
| GNIS | 655423 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| North Cormorant River | 20 | 39 | 39 |
| O'Brien Creek | 30 | 20 | 37 |
| South Cormorant River | 27 | 31 | 48 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey