Information from: “Atlas of the World’s Languages in Danger” . Christopher Moseley (ed.) (2010) UNESCO Publishing
The last speaker, Klavdia Plotnikova, died in 1989.
"formerly spoken in the eastern part of the Minusinsk region, in modern Krasnoyarsk Region; the area became gradually restricted to the Kan and Mana river basins and their sources on the northwesternmost slopes of the Eastern Sayan mountains; the last Kamas-speaking community lived in the village of Abalakovo"