Which region in Japan does "Tohoku" refer to?

Tohoku refers to the northern part of Japan's main island, Honshu. This region is known for its scenic beauty, including mountains and coastline, as well as its rich agricultural landscape. The climate in Tohoku contributes to the production of high-quality rice, which is essential for sake brewing. Sake from this area is celebrated for its distinct flavors and characteristics, often reflecting the regional terroir. Furthermore, Tohoku encompasses several prefectures, including Miyagi, Akita, and Yamagata, which are all prominent in sake production. Understanding the geographical significance of Tohoku provides insight into its cultural and agricultural practices, particularly in the context of sake.