heads in glacier on N slope of Takhinsha Mts., flows NE to Chilkat River at Klukwan, 21 mi. SW of Skagway, St. Elias Mts
Tlingit Indian name reported as "Zirku" by Aurel and Arthur Krause (1883, map). The Indian name meaning "big salmon" is spelled "Tsirku" in the 1883 Coast Pilot (p. 198). It was called "Tisku River" by the International Boundary Commission (IBC) in 1899, and "Salmon River" by Brooks (1900b, pl. 49), U.S. Geological Survey (USGS). According to E. C. Robertson, U.S. Geological Survey (USGS), the local residents speak of it as the Big Salmon River.