Southern Tsimshian or Sgüüx̣s is the southern dialect of the Coast Tsimshian language, spoken by the Gitga'ata and Kitasoo Tsimshians in Klemtu, B.C..
Today the language has just one fluent speaker.
Sgüüx̣s has been described[1] as a highly conservative dialect of Coast Tsimshian. The name Sgüüx̣s means "the language beside."
Several articles on the language were written by Tsimshian specialist John Asher Dunn.[2]
The language is currently being documented with the goal of being able to create new fluent speakers at some time in the future.