Standard Drainage Area Classification (SDAC) 2003
11A - Missouri
| Code | Sub-sub-drainage areas | Part |
|---|---|---|
| 11AA | Upper Milk | Canada part |
| 11AB | Central Milk | Canada part |
| 11AC | Frenchman | Canada part |
| 11AD | Whitewater | Canada part |
| 11AE | Lower Milk and Poplar | Canada part |
| 11AF | Big Muddy | Canada part |
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