Flagstaff, Arizona is located in the southwestern United States at the intersection of Interstate 17 and Interstate 40, and is the largest city in northern Arizona. The city is also the regional center and county seat for Coconino County, the second largest county in the 48 contiguous states. The City of Flagstaff became a town in 1894 and incorporated as a city in 1928. Currently comprising of just over 64 square miles, Flagstaff is nestled at the base of the San Francisco Peaks (the highest mountain range in the state – with Humphreys Peak at 12,633 feet (3,850m) and is surrounded by one of the largest pine forests on earth. Flagstaff drew its name from a very tall pine tree made into a flagpole in 1876 to celebrate our nation's centennial on July 4, 1876. At nearly 7,000 feet, Flagstaff is also one of the highest elevation cities in the United States, which helps make the city a year-round mecca for visitors.