Entiat River
| Entiat River | |
| Country | United States |
|---|---|
| State | Washington |
| County | Chelan |
| Source | Cascade Range |
| - coordinates | 48°9′1″N 120°47′58″W / 48.15028°N 120.79944°W |
| Mouth | Columbia River |
| - coordinates | 47°39′40″N 120°13′28″W / 47.66111°N 120.22444°WCoordinates: 47°39′40″N 120°13′28″W / 47.66111°N 120.22444°W |
| Length | 57 mi (92 km) |
| Basin | 466 sq mi (1,207 km2) |
| Discharge | for river mile 1.4 near Entiat |
| - average | 471 cu ft/s (13 m3/s) |
| - max | 4,810 cu ft/s (136 m3/s) |
| - min | 58 cu ft/s (2 m3/s) |
  Location of the mouth of the Entiat River in Washington
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The Entiat River is a tributary of the Columbia River, joining the Columbia near Entiat. The USGS lists two variant names for the Entiat River: En-ti-at-kwa River and Entiatqua River. The river's name is derived from the Columbia-Moses (Salishan) term /nt'yátkw/ [nt'iátkw], meaning "place of grassy water". The name, spelled "Entiat", was selected for the river in 1958 by the Chelan County Public Utility District.
The Entiat River is located entirely within Chelan County, in Washington state in the United States. Over 90% of the drainage basin of the Entiat River and its tributaries is publicly owned property, mostly the Wenatchee National Forest. A large number of place names in the Entiat River basin were given by Albert H. Sylvester.
The Entiat River's headwaters lie in the Glacier Peak Wilderness of the Wenatchee National Forest. Its main source comes from the slopes of Mount Maude and Seven Fingered Jack, and Entiat Glacier. From there the river flows east through Entiat Meadows before turning south. It flows south and southeast between the Entiat Mountains on the west and the Chelan Mountains on the east.
Downstream from the main river's confluence with the North Fork Entiat River, the Entiat River falls over Entiat Falls. It collects the waters of many small tributary creeks, including the Mad River.
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