Plateau Sign Language, or Old Plateau Sign Language, is a poorly attested, extinct sign language historically used across the Columbian Plateau. The Crow Tribe introduced Plains Sign Talk, which replaced Plateau Sign Language among the eastern nations that used it (the Coeur d’Alene, Sanpoil, Okanagan, Thompson, Lakes, Shuswap, and Colville), with western nations[which?] shifting instead to Chinook Jargon.[2]
| Plateau Sign Language | |
|---|---|
| Langue des Signes du Plateau | |
| Native to | Canada, United States |
| Region | Columbia Plateau |
| Ethnicity | Various First Nations and Native Americans of the Columbia Plateau region |
Native speakers | 1-2 rememberers (2017)[1] |
contact pidgin | |
| none | |
| Language codes | |
| ISO 639-3 | None (mis) |
| Glottolog | None |
 | |
 Maps of the various sign languages of Turtle Island (North America), excluding Francosign languages. Plateau Sign Language is labelled in orange as "PSL" | |
Further reading
edit- Mallery, Garrick (1881). "Sign Language Among North American Indians Compared With That Among Other Peoples And Deaf-Mutes". First Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1879-1880. Washington: Government Printing Office. pp. 263–552 – via Project Gutenberg.
- Clark, William Philo (1885). The Indian Sign Language – via Google Books.
References
edit- ↑ "Indigenous sign languages in Canada | Darin Flynn | University of Calgary". www.ucalgary.ca. Retrieved 2025-09-30.
- ↑ Flynn, Darin (2017-08-16). "Indigenous sign languages in Canada". University of Calgary. Retrieved 2023-07-17.
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