India's northeastern area contains the landlocked state of Nagaland. Its northern, western, southern, and eastern borders are shared with the Sagaing Region of Myanmar and the Indian states of Arunachal Pradesh and Assam. Its main city is Dimapur, while Kohima is its capital. One of India's smallest states, it has a total area of 16,579 square kilometers (6,401 square miles) and a population of 1,980,602 as of the 2011 Census of India. On December 1st, 1963, Nagaland was proclaimed the 16th state of India. A wide range of natural, cultural, and environmental treasures can be found there. The hilly state of Nagaland is located between the parallels of 25.2 and 27.0 degrees latitude north and 95 and 94 degrees east longitude. Viswema, in the state's southern section, is home to the prominent Dzüko Valley. With agriculture making up more than 70% of the state's economy, the state possesses enormous natural mineral, petroleum, and hydropower resource reserves. Forestry, tourism, insurance, real estate, horticulture, and various cottage businesses are additional key enterprises. Since the 1950s, the state has been plagued by insurgency and interethnic conflict, which has prevented it from developing economically.