Shimokita Peninsula
Tōhoku dialect, one of the three main dialects of Japan, is spoken in Aomori Prefecture. The most widespread variants are the Tsugaru dialect, Nanbu dialect, and Shimokita dialect. The boundary determining which of these dialects are spoken is mainly along the former border of the Tsugaru and Nanbu clans between Hiranai and Noheji, with some overlap. Speakers of the Tsugaru dialect are typically centered around Hirosaki, while those who use the Nanbu dialect are centered around Hachinohe. The Shimokita dialect is used on the Shimokita Peninsula around Mutsu and has been recognized as having enough differences to distinguish it from the Nanbu dialect. It was also used in combination with the Nanbu dialect in an early Japanese–Russian dictionary written by a man whose father came from the Shimokita Peninsula.