| View KML View WKT | United States Rivers |
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Grass River
| States | Alaska |
| Length | 66.1 miles |
| Watershed Length* | 443 miles |
| Mouth | Porcupine River ⤏ Northeastern Pacific Ocean |
| GNIS | 1402888 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| Little Black River | 66 | 206 | 377 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey