B
Unknown County Lake Quality
Minnesota — 6 lakes, average grade B (Good)
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All Lakes in Unknown County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Birch Lake | A | 4.57m | — |
| 2 | Ottertrack Lake | A | 6.32m | — |
| 3 | Swamp Lake | A | 4.95m | — |
| 4 | Mountain Lake | A | 5.79m | — |
| 5 | Carp Lake | C | 2.67m | — |
| 6 | Seed Lake | C | 2.13m | — |