Alder Brook
| Alder Brook | |
| River | |
| Mouth | Middle Branch Grass River |
|---|---|
| - location | Degrasse, New York |
| - elevation | 900 ft (274 m) |
| - coordinates | 44°23′21″N 75°01′23″W / 44.38917°N 75.02306°WCoordinates: 44°23′21″N 75°01′23″W / 44.38917°N 75.02306°W |
| Basin | 5.06 sq mi (13 km2) |
Alder Brook flows into the Middle Branch Grass River near Degrasse, New York.
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