The Tōhoku Main Line is a major railway line in Japan, connecting Tokyo to Aomori. It spans approximately 674 kilometers and serves as a vital transportation route for both passengers and freight. The line is operated by the East Japan Railway Company (JR East) and features various train services, including the popular Shinkansen (bullet train). Opened in the late 19th century, the Tōhoku Main Line passes through several key cities, including Sendai and Morioka. It offers scenic views of the Japanese countryside and is an essential link for travelers exploring the Tōhoku region.