Highest altitude railway tunnel

According to Official Guinness Records,

The Fenghuo Mount railway tunnel is situated at 4,905 m (16,092 ft) on the Qinghai-Tibet Railway as it passes over the Qinghai-Tibet Highland in China. It is 1,338 m (4,390 ft) long and was constructed between 18 October 2001 and 30 September 2003.

For a complete list of 2003 records, please visit 2003 Guinness Records in China.

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