# Weiser River

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The **Weiser River** is a 103-mile (166-kilometre)[1] tributary of the [Snake River](/source/Snake_River) in western [Idaho](/source/Idaho) in the United States. It drains a mountainous area of 1,660 square miles (4,300 km2) consisting primarily of low rolling foothills intersected by small streams south and east of [Hells Canyon](/source/Hells_Canyon) along the Idaho-[Oregon](/source/Oregon) border.

## Description

It rises in northern [Adams County](/source/Adams_County,_Idaho) in the [Seven Devils Mountains](/source/Seven_Devils_Mountains), approximately 10 miles (16 km) west of [New Meadows](/source/New_Meadows,_Idaho) in the [Payette National Forest](/source/Payette_National_Forest). It flows generally southwest, between the [Cuddy Mountains](/source/Cuddy_Mountains) to the west and the [West Mountains](/source/West_Mountains) to the east, past [Council](/source/Council,_Idaho) and [Cambridge](/source/Cambridge,_Idaho). In southern [Washington County](/source/Washington_County,_Idaho) it turns west for its lower 10 miles (16 km) and enters a broadening valley called the Weiser Cove along the northwestern extreme of the [Snake River Plain](/source/Snake_River_Plain) before entering the Snake from the east at [Weiser](/source/Weiser,_Idaho).

It receives the [Little Weiser River](/source/Little_Weiser_River) from the east approximately 2 miles (3 km) southwest of Cambridge. The river descends from approximately 8,000 feet (2,400 m) above sea level at its source to 2,090 feet (640 m) at its mouth on the Snake. For much of its upper reaches, the river follows a narrow course through the mountains, emerging at times into several broad ranching valleys, including one around [Midvale](/source/Midvale,_Idaho). Although it flows unimpeded, it is used for [irrigation](/source/Irrigation) in the vicinity of its mouth upstream from Weiser, as well along tributaries in its upper reaches. The [Pacific and Idaho Northern Railroad](/source/Pacific_and_Idaho_Northern_Railroad) formerly followed its course from Weiser to New Meadows.

The river, as well as the town of [Weiser](/source/Weiser,_Idaho), are named for Private [Peter M. Weiser](/source/Peter_M._Weiser) of the [Lewis and Clark Expedition](/source/Lewis_and_Clark_Expedition) of 1804-1806.

## See also

- [List of Idaho rivers](/source/List_of_Idaho_rivers)
- [List of longest streams of Idaho](/source/List_of_longest_streams_of_Idaho)

## References

1. ["National Hydrography Dataset"](https://web.archive.org/web/20111213040729/http://nhd.usgs.gov/index.html). United States Geological Survey. Archived from [the original](https://nhd.usgs.gov/index.html) on December 13, 2011. Retrieved July 22, 2013.

1. "Weiser River". 392986. Retrieved July 22, 2013.

1. Source elevation derived from [Google Earth](/source/Google_Earth) search using GNIS source coordinates.

## External links

- [Idaho State University: Weiser River Drainage](http://imnh.isu.edu/digitalatlas/geog/fishery/drainage/drain18.htm)

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Adapted from the Wikipedia article [Weiser River](https://en.wikipedia.org/wiki/Weiser_River) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Weiser_River?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.