The Yentna River[4] (Dena'ina: Yentnu) is a river in South Central Alaska, formed by its East Fork[1] and West Fork[2] at 62°16′50″N 151°46′26″W / 62.28056°N 151.77389°W / 62.28056; -151.77389,[3] flows South-East to Susitna River, 30 miles (48 km) North-West of Anchorage, Alaska, at Cook Inlet Low.

[3] Tanaina Indian name reported by Spurr (1900, p. 46), United States Geological Survey.

"Sometimes called Johnson River after the first white man to ascend it.

The river system (including upstream tributaries) is about 100 miles (160 km) long.

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