Chinookan is a small family of languages spoken in Oregon and Washington along the Columbia River by Chinook peoples.
Family division 
Chinookan languages consist of three languages with multiple varieties. There is some dispute over classification, and there are two ISO 639-3 codes assigned: chh (Chinook, Lower Chinook) and wac (Wasco-Wishram, Upper Chinook). For example, Ethnologue 15e classifies Kiksht as Lower Chinook, while others consider it instead Upper Chinook (discussion), and others a separate language.
See also 
Chinook Jargon – a pidgin based on Chinookan and with many words loaned from other languages, which was used in trade along the Pacific Northwest coast and adjoining areas inland.
Further reading 
External links