| View KML View WKT | United States Rivers |
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Umatilla River
| States | Oregon |
| Length | 89.2 miles |
| Watershed Length* | 366 miles |
| Mouth | Columbia River ⤏ Eastern Pacific Ocean |
| GNIS | 1157874 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| Birch Creek | 48 | 16 | 55 |
| Butter Creek | 15 | 70 | 101 |
| McKay Creek | 51 | 39 | 51 |
| Meacham Creek | 78 | 36 | 36 |
| Wildhorse Creek | 55 | 34 | 34 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey