Tu6P diesel locomotive with cargo-passenger car on the Apsheronsk narrow-gauge railway ─ a mountain narrow-gauge railway located in Krasnodar Krai in Caucasus mointains at the south of Russia. It was opened in 1927 and built in the standard Russian narrow-gauge track gauge of 750 mm. The length of the railway as of 2010 is 127 kilometres (79 miles) of which 37 kilometres (23 miles) is operational. It carries freight (including: wood, food, and postal services) and passengers, including a train which transports children to school.