Khun Tan train tunnel, Thailand

The Khun Tan tunnel is the longest of Thailand's seven railway tunnels at just over 1km in length. Khun Tan Station, at the northern end of the tunnel, is the highest railway station in Thailand at an elevation of 758 m. Recorded by Marcel Gnauk.

Part of the Until We Travel project to map and reimagine the sounds of transport and travel in a pre-pandemic and pandemic world. See the whole project at https://www.citiesandmemory.com/travel.