heads at glacier at about 614600N1434500W, flows SW 42 mi. to Copper River, 2 mi. NE of Chitina and 67 mi. NE of Valdez; Copper River Basin.
Ahtena Indian name meaning "coal river (kho-tsi-tns)," spelled Katz-zelena and Katselena in 1898 by Captain W. R. Abercrombie, USA. W. J. Peters, U.S. Geological Survey (USGS), used the Kotsina spelling on an 1899 fieldsheet.
Blackbird Falls, Chitna Route,
Lakes:First Lake, Lost Lake, Second Lake, Third Lake, Three Mile Lake, Town Lake,
Mountains:Hubbard Peak, Spirit Mountain,
Rivers:Chitina River, Kotsina River, Tonsina River,
Streams:Canyon Creek, Divide Creek, Elliott Creek, Eskilida Creek, Falls Creek, Fivemile Creek, Fox Creek, Haley Creek, Horse Creek, Iron Creek, Kuslina Creek, Liberty Creek, Loraine Creek, O-Brien Creek, Pass Creek, Rabbit Creek, Surprise Creek, Taral Creek, Tenas Creek, Willow Creek, Willow Creek,
Valleys:Waterfalls: