1. Si-ksi-kay-tsi-ta-pi, sin-na-ki-sin, nita-ta-tsi ki mi-sta-ki-tsi : Blackfeet language map, rivers and mountains Yale Public content 1979. 2002-06-01T04:00:00Z. 2023-02-24T22:33:16Z. La Fromboise, Conrad. Blackfeet Heritage Program. English. Public. Montana.