John Day River
| Use attributes for filter ! | |
| Discharge | 58. 28 m³/s |
|---|---|
| Length | 457 km |
| Basin size | 8,000 sq mi (21,000 km2) |
| Mouth | Columbia River |
| Sources | Malheur National Forest |
| Strawberry Range | |
| Cities | John Day |
| Prairie City | |
| Mount Vernon | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2153344 |
About John Day River
The John Day River is a tributary of the Columbia River, approximately 284 miles long, in northeastern Oregon in the United States. Undammed along its entire length, the river is the third longest free-flowing river in the contiguous United States. There is extensive use of its waters for irrigation.
