Montana (mɒnˈtænə) is a state in the
Western United States. The western third of Montana contains numerous mountain ranges. Smaller "
island ranges" are found throughout the state, for a total of 77 named ranges that are part of the
Rocky Mountains. The state's name is derived from the Spanish word
montaña (mountain). Montana has several nicknames, none official, including: "Big Sky Country" and "The Treasure State", and slogans that include "Land of the Shining Mountains" and more recently, "The Last Best Place". Montana is ranked
4th in size, but
44th in population and the 48th in population density of the
50 United States. The economy is primarily based on agriculture, including ranching, wheat and other small grain farming. Other significant economic activities include oil, gas, coal and hard rock mining,
lumber, and the fastest-growing sector, tourism. The health care, service and government sectors also are significant to the state's economy. Millions of tourists annually visit
Glacier National Park, the
Little Bighorn Battlefield National Monument, and three of the five entrances to
Yellowstone National Park.