High Quality Content by WIKIPEDIA articles! The Mountain Railways of India refer to the five railway lines built in the mountains of India in the nineteenth and early twentieth century, during the British Raj, which are run even today by the Indian Railways. Three out of these five railways, the Darjeeling Himalayan Railway (1881), the Kalka-Shimla Railway (1898) and the Kangra Valley Railway (1924), are located in the rugged hill regions of the Himalayas of Northern India and the other two are much further south in the Western Ghats; the Nilgiri Mountain Railway in Southern India, and the Matheran Hill Railway in Maharashtra. The Darjeeling Himalayan Railway, the Nilgiri Mountain Railway and the Kalka-Shimla Railway have been collectively designated as a UNESCO World Heritage Site entitled "Mountain Railways of India". These five railways in India are part of around twenty similar lines of narrow gauge and metre gauge found in the world.