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| Koumi Line | |||
|---|---|---|---|
 JR East KiHa 110 series DMU on the Koumi Line | |||
| Overview | |||
| Native name | 小海線 | ||
| Status | In operation | ||
| Owner | JR East | ||
| Locale | Yamanashi, Nagano prefectures | ||
| Termini | |||
| Stations | 31 | ||
| Service | |||
| Type | Regional rail | ||
| Operator(s) | JR East | ||
| Rolling stock | KiHa E200 DMU, KiHa 110 series DMU | ||
| History | |||
| Opened | 1919 | ||
| Technical | |||
| Line length | 78.9 km (49.0 mi) | ||
| Number of tracks | Entire line single tracked | ||
| Character | Rural and scenic | ||
| Track gauge | 1,067 mm (3 ft 6 in) | ||
| Electrification | None | ||
| Operating speed | 85 km/h (53 mph) | ||
| |||
The Koumi Line (小海線, Koumi-sen) is a railway line in Japan operated by East Japan Railway Company (JR East). It links Kobuchizawa Station in Hokuto, Yamanashi with Komoro Station in Komoro, Nagano, and extends 78.9 km (49.0 mi) through the mountains with a total of 31 stations. It roughly follows the route of National Route 141, paralleling the road at some places and crossing it twice.