The Entiat River is a tributary of the Columbia River, joining the Columbia near Entiat. The United States Geological Survey (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"; another source states that it was called Enteatqua which means "Rapid Water" or "Rushing 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 ... Source: Wikipedia
Maximum discharge on the river today is recorded at the Entiat River Near Entiat with a streamflow rate of 79 cfs. This is also the deepest point on the Entiat River, reporting a gauge stage of 6.69 ft. This river is monitored from 2 different streamgauging stations along the Entiat River, the first of which is perched at an elevation of 1,575 ft, the Entiat River Near Ardenvoir .