日高線 厚賀~大狩部間 67k506m 付近における盛土流出について [Trackbed damage on Hidaka Line between Atsuga and Ōkaribe] (PDF). News release (in Japanese). Japan: Hokkaido Railway Company. 13 January 2015. Archived(PDF) from the original on 4 March 2016. Retrieved 4 April 2017.
日高本線・鵡川~様似間の復旧を断念 JR北海道、地元と協議へ [JR Hokkaido abandons reopening of Hidaka Main Line between Mukawa and Samani]. Traffic News (in Japanese). Japan: Mediavague Co. Ltd. 22 December 2016. Archived from the original on 22 December 2016. Retrieved 4 April 2017.
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日高本線・鵡川~様似間の復旧を断念 JR北海道、地元と協議へ [JR Hokkaido abandons reopening of Hidaka Main Line between Mukawa and Samani]. Traffic News (in Japanese). Japan: Mediavague Co. Ltd. 22 December 2016. Archived from the original on 22 December 2016. Retrieved 4 April 2017.
日高線 厚賀~大狩部間 67k506m 付近における盛土流出について [Trackbed damage on Hidaka Line between Atsuga and Ōkaribe] (PDF). News release (in Japanese). Japan: Hokkaido Railway Company. 13 January 2015. Archived(PDF) from the original on 4 March 2016. Retrieved 4 April 2017.