- Khun Tan Tunnel
(Thai: อุโมงค์ขุนตาน) is the longest of
Thailand 's sevenrailway tunnel s. It is 1362.10 metres long, and situated between kilometre 681.57870 and 682.94080 on the Northern line fromBangkok toChiang Mai , between Ma Tan Noi and Khun Tan stations [ from a list of tunnel data provided by the Information Bureau of the State Railway of Thailand ] . The tunnel runs under the boundary between Lampang and Lamphun provinces.References
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