Chungcheongnam-do(Asan-si)
Onyangoncheon Station opened on June 1, 1922 as a regular railway station. The station building was relocated on June 23, 1983. On January 1, 2005, it was converted into a metro station. On September 2, 2008, the double tracked railway extension from Cheonan Station to Sinchang Station started operation.The Seoul Metropolitan Subway extended Line 1 to service the Cheonan-Sinchang extension on December 15, 2008. Onyangoncheon Station started to serve the Nuriro Trains on June 1, 2009.