Frontier Strip

Frontier Strip refers to the American six states from North Dakota south to Texas. Geographically speaking, the states basically form a straight line from north to south. The term 'Frontier Strip' is probably an allusion to the days of the American Wild West, when the states (some of which were territories at that point) on the Strip were considered to be rugged outposts.

Frontier Strip States

(From north to south) North Dakota, South Dakota, Nebraska, Kansas, Oklahoma, Texas