|- elevation||7,745 ft (2,361 m) |
|- elevation||4,640 ft (1,414 m) |
|- coordinates||Coordinates: |
|Length||59 mi (95 km)|
|Basin||827 sq mi (2,142 km2) |
|Discharge||for at mouth|
|- average||230 cu ft/s (6.5 m3/s) |
|- max||710 cu ft/s (20.1 m3/s)|
|- min||87 cu ft/s (2.5 m3/s)|
From its source in Custer County, at the confluence of the West Fork and East Fork headwaters, the Pahsimeroi River flows generally northwest, through the Pahsimeroi Valley, between the Lemhi Range to the east, and the Lost River Range and to the west.
The Pahsimeroi River joins the Salmon River near Ellis, Idaho, upriver from Salmon, Idaho.
The water of the Pahsimeroi River and its tributaries is used for irrigation agriculture. All of the river's mainstem tributaries are wholly diverted and totally disconnected year round due to diversion for irrigation.
- Google Earth elevation for GNIS coordinates.
- U.S. Geological Survey Geographic Names Information System: Pahsimeroi River, USGS, GNIS
- Water Resource Data, Idaho, 2005, USGS.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed May 3, 2011
- Salmon Subbasin Plan, Northwest Power and Conservation Council
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