AR MO OK Tripoint, Arkansas
When a state line terminates at another state line, the intersection is often a tripoint, a place where three states meet. There are 62 such intersections in the United States, and 35 if you count only the intersections that are on dry land. The sites are sometimes marked by monuments, such as at this location, where Arkansas, Oklahoma, and Missouri meet along Highway 43. The monument was erected by the Ozark Culture Club in 1916, and now stands across the street from the Corner Stone convenience store.