| View KML View WKT | United States Rivers |
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Grass River
| States | New York |
| Length | 73.6 miles |
| Watershed Length* | 277 miles |
| Mouth | St. Lawrence River |
| GNIS | 977224 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| Grass River - Middle Branch | 74 | 14 | 14 |
| Grass River - North Branch | 66 | 31 | 31 |
| Grass River - South Branch | 74 | 48 | 63 |
| Harrison Creek | 53 | 5 | 40 |
| Little River | 48 | 20 | 36 |
| Plumb Brook | 65 | 20 | 20 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey