The Four State Area or Quad State Area, is the area where the states of Arkansas, Kansas, Missouri and Oklahoma touch. The Tulsa, Oklahoma; Joplin, Missouri; and Fayetteville-Springdale-Rogers, Arkansas metropolitan areas are located within the region. Notable cities and towns in the area are Tulsa, Oklahoma; Pittsburg, Kansas; Joplin, Missouri; and Fayetteville, Springdale, Rogers and Bentonville, Arkansas.The area is partially located in the Ozarks.