Nagaland (/ˈnɑːɡəlænd/) is a landlocked state in the northeastern region of India. It is bordered by the Indian states of Arunachal Pradesh to the north, Assam to the west, Manipur to the south and the Sagaing Region of Myanmar to the east. Its capital city is Kohima and its largest city is Dimapur. The state has an area of 16,579 square kilometres (6,401 sq mi) with a population of 1,980,602 as per the 2011 Census of India, making it one of the smallest states in India. Nagaland became the 16th state of India on 1 December 1963. It is home to a rich variety of natural, cultural and environmental resources. Nagaland is a mountainous state and lies between the parallels of 95 and 94 degrees east longitude and 25.2 and 27.0 degrees latitude north. The high-profile Dzüko Valley is located at Viswema, in the southern region of the state. The state has significant resources of natural minerals, petroleum, and hydropower with agriculture as the state's most important economic activity, accounting for over 70% of its economy. Other significant activities include forestry, tourism, insurance, real estate, horticulture and miscellaneous cottage industries. The state has experienced insurgency and inter-ethnic conflict since the 1950s, limiting its economic development.