Tags: Language.
Upper Chinook also known as Kiksht Columbia Chinook and Wasco-Wishram after its only living dialect is a highly endangered language of the US Pacific Northwest. It had 69 speakers as of 1990 of which 7 were monolingual: five Wasco and two Wishram. As of 2001 there were five remaining speakers of Wasco.It was the last living Chinookan language. The last fully fluent speaker Gladys Thompson died in 2012.