Tags: Language.
Northern Kalapuyan is a Kalapuyan language indigenous to northwestern Oregon in the United States. It was spoken by Kalapuya groups in the northern Willamette Valley southwest of present-day Portland.Two distinct dialects of the languages have been identified. The Tualatin dialect (Tfalati Atfalati) was spoken along the Tualatin River. The Yamhill (Yamell) dialect was spoken along the Yamhill River.