Northern Kalapuya language

Northern Kalapuyan is an extinct 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.

Tualatin-Yamhill
Northern Kalapuya
Native to	United States
Region	Northwest Oregon
Extinct	1937, with the death of Louis Kenoyer
Language family	Kalapuyan Tualatin-Yamhill
Dialects	Tualatin Yamhill
Language codes
ISO 639-3	nrt
Linguist List	nrt
Glottolog	tual1242

Three distinct dialects of the language have been identified. The Tualatin dialect (Tfalati, Atfalati) was spoken along the Tualatin River. The Yamhill (Yamhala) dialect was spoken along the Yamhill River. The language is closely related to Central Kalapuya, spoken by related groups in the central and southern Willamette Valley.

The terminal speaker of Northern Kalapuya was Louis Kenoyer who died in 1937.^[1]