| Wallowa River | |
| Name Etymology: | A Nez Perce word for a triangle of stakes forming part of a fish trap[1] |
| Map Size: | 300 |
| Pushpin Map: | USA Oregon |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the Wallowa River in Oregon |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Oregon |
| Subdivision Type4: | County |
| Subdivision Name4: | Wallowa and Union |
| Length: | 55miles[2] |
| Discharge1 Location: | Wallowa |
| Discharge1 Min: | 89cuft/s |
| Discharge1 Avg: | 610cuft/s |
| Discharge1 Max: | 4640cuft/s |
| Source1: | Confluence of the east and west forks of the Wallowa River |
| Source1 Location: | about 1miles south of Wallowa Lake, Wallowa County, Oregon |
| Source1 Coordinates: | 45.2744°N -117.2117°W[3] |
| Source1 Elevation: | 4499feet[4] |
| Mouth: | Grande Ronde River |
| Mouth Location: | Union County, Oregon |
| Mouth Coordinates: | 45.7253°N -117.7858°W |
| Mouth Elevation: | 2316feet |
| Basin Size: | 950sqmi[5] |
| Tributaries Left: | Lostine River, Minam River |
The Wallowa River is a tributary of the Grande Ronde River, approximately 55miles long, in northeastern Oregon in the United States. It drains a valley on the Columbia Plateau in the northeast corner of the state north of Wallowa Mountains.
The Wallowa Valley was home to Chief Joseph's band of the Nez Perce Tribe. Chief Joseph asked the first white settlers to leave when they arrived in 1871. The U.S. government expelled the tribe and seized their property and livestock in 1877,[6] when non-Indian farmers and ranchers wanted to settle the fertile Wallowa valley. The tribe was barred from returning to their homeland by the government after repeated petitions. The tribal members were shipped in unheated box cars to Indian Territory (now Oklahoma) to be placed in a prisoner-of-war camp never to see their home again.
The river begins at the confluence of its east and west forks, which rise in southern Wallowa County, in the Eagle Cap Wilderness of the Wallowa–Whitman National Forest. It flows generally northwest through the Wallowa Valley, parallel to the McCully Basin which is East of the ridge formed from East Peak, Hidden Peak and Aneroid Mountain. At this point, the West Fork of the Wallowa River drainage basin is connected to the North Fork of the Imnaha River by the Polaris Pass drainage divide.[7]
It then flows past the communities of Joseph, Enterprise, and Wallowa. Further upstream it receives the Minam River from the left at the hamlet of Minam. Continuing north another 10miles, it joins the Grande Ronde along the Wallowa–Union county line about 10miles north-northeast of Elgin and about 81miles from the larger river's confluence with the Snake River.[2]
The Wallowa River supports populations of steelhead, spring Chinook salmon, and mountain whitefish among other species. Sockeye salmon were extirpated from the Wallowa River when a small dam was constructed at the outlet of Wallowa Lake in the headwaters of the river. The dam was constructed to raise the level of the lake to store water for irrigation.