Senzan Line
There are only two trains that share both the Senzan and Tōhoku Main Lines' tracks: Senzan Line 2832M, which runs from Sakunami Station to Sendai where it becomes 1428M and continues on the Tōhoku Main Line tracks until Iwanuma, and Tōhoku Main Line 425M, which originates in Shiroishi, changes to 1831M at Sendai, and continues on the Senzan Line tracks to Ayashi. The Sakunami — Iwanuma train runs only on Saturdays and weekends.