History
Oyamada Station opened on 25 October 1913 as the Kōda stop on the 762 mm narrow-gauge Iwate Light Railway, the line that ran from Hanamaki to the long-defunct Sennintōge Station. It was upgraded to a full passenger station and renamed Oyamada on 23 November 1915. The Iwate Light Railway was nationalised on 1 August 1936, becoming the Kamaishi Line, and the standard 1,067 mm regauging was completed in 1943. The station became part of JR East at the JNR privatisation on 1 April 1987. It sits 8.3 rail kilometres from the Kamaishi Line's starting point at Hanamaki Station, with a single side platform and no on-site staff.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.