History
Otozawa Station opened on 21 November 1923 as a station of the Kurobe Railway; the line became part of Toyama Chihō Railway in the 1943 wartime consolidation of Toyama-prefecture private railways, and the section was upgraded from 600 V to 1500 V on 11 November 1943, after which through-running from Dentetsu-Toyama began. The station is in the Unazuki-machi Uchiyama district of Kurobe in eastern Toyama Prefecture, two stops short of the Unazuki-Onsen terminus, with the Otozawa hamlet that gives the station its name across the Kurobe River. Kurobe, on the lower Kurobe River facing the Sea of Japan, was reformed on 31 March 2006 by the merger of the former Kurobe City with the gorge-gateway town of Unazuki.
History summarized from Japanese & English Wikipedia · last reviewed 2026-06-09.
Notes
The Kurobe article notes that there is no direct ordinary road across the prefectural border with Nagano: although the Kurobe Gorge Railway and the Kansai Electric Power upper-track railway lie within the city, ordinary travellers wishing to reach Ōmachi in Nagano must instead detour via Itoigawa in Niigata. (Note: Kurobe Dam and Lake Kuroyon are located in neighbouring Tateyama Town, not within Kurobe City.)