Jeongseon County WikiVisually
The centerpiece of the last section was the 4505 m long Jeongam Tunnel the longest in South Korea before the opening of longer tunnels on the Jeolla Line and the Gyeongbu High Speed Railway Chujeon Station at the eastern end of the tunnel is the one on the highest altitude in South Korea at 855 m above the sea The line was among the first foreseen for electrification with the 25 kV60 Hz system in South