Ban'etsu West Line
Proper noun: a JR East railway line in Fukushima and Niigata prefectures.
The Ban'etsu West Line connects Aizu-Wakamatsu and Niitsu.
The Ban'etsu East Line, another railway line in the same region.
Compound of 磐 (from 磐城, Iwaki), 越 (from 越後, Echigo), 西 (west), and 線 (line). The name reflects the line's route connecting the former provinces of Iwaki and Echigo via a western path.