Quadripoint
The Four Corners Monument is the only point in the United States where four states meet: Colorado, Utah, New Mexico, and Arizona meet at right angles. The United States first acquired the area now called Four Corners from Mexico after the Mexican–American War in 1848. In 1863 Congress created Arizona Territory from the western part of New Mexico Territory. The boundary was defined as a line running due south from the southwest corner of Colorado Territory, which had been created in 1861. By defining one boundary as starting at the corner of another Congress ensured the eventual creation of four states meeting at a point, regardless of the inevitable errors of boundary surveying. The monument is centered at .
Atlantic Coast Conference
The ACC has 15 member institutions located within the borders of 10 states. Listed in alphabetical order, these 10 states within the ACC's geographical footprint are Florida, Georgia, Indiana, Kentucky, Massachusetts, New York, North Carolina, Pennsylvania, South Carolina, and Virginia. The geographic domain of the conference is predominantly within the Southern and Northeastern United States along the US Atlantic coast and stretches from Florida in the south to New York in the North and from Indiana in the west to Massachusetts farthest east.