Gangtok is the capital of the mountainous northern Indian state of Sikkim. Established as a Buddhist pilgrimage site in the 1840s, the city became capital of an independent monarchy after British rule ended, but joined India in 1975. Today, it remains a Tibetan Buddhist center and a base for hikers organizing permits and transport for treks through Sikkim’s Himalayan mountain ranges.
Gangtok rose to prominence as a popular Buddhist pilgrimage site after the construction of the Enchey Monastery in 1840. In 1894, the ruling Sikkimese Chogyal, Thutob Namgyal, transferred the capital to Gangtok. In the early 20th century, Gangtok became a major stopover on the trade route between Lhasa in Tibet and cities such as Kolkata (then Calcutta) in British India. After India won its independence from the British Empire in 1947, Sikkim chose to remain an independent monarchy, with Gangtok as its capital. After Sikkim's merger with India in 1975, Gangtok continued as the state capital.
Gangtok is located at 27.3325°N 88.6140°E (coordinates of Gangtok head post office). It is in the lower Himalayas at an elevation of 1,650 m (5,410 ft). The town is on one side of a hill, with "The Ridge", a promenade housing the Raj Bhawan, the governor's residence, at one end and the palace, at an altitude of about 1,800 m (5,900 ft), at the other. The city is flanked on east and west by two streams, namely Roro Chu and Ranikhola, respectively. These two rivers divide the natural drainage into two parts, the eastern and western parts. Both the streams meet the Ranipul and flow south as the main Ranikhola before it joins the Teesta at Singtam. Most of the roads are steep, with the buildings built on compacted ground alongside them.