Fort Smith

Fort Smith is the second-largest city in Arkansas and one of the two county seats of Sebastian County. With a population of 86,209 in 2010, it is the principal city of the Fort Smith, Arkansas-Oklahoma Metropolitan Statistical Area, a region of 298,592 residents which encompasses the Arkansas counties of Crawford, Franklin, and Sebastian, and the Oklahoma counties Le Flore and Sequoyah.

Fort Smith in Supervolcano
Camp Constitution, a refugee camp established by FEMA after the Yellowstone Supervolcano eruption, lay between Muskogee, Oklahoma and Fort Smith, Arkansas.