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 .
Four Corners, Florida
The United States Census Bureau area is based on census tracts. The complete area of Four Corners is larger and can be described as north along US 27 to Lake Louisa State Park (4 miles north of US 192), south along US 27 to Heart of Florida Hospital (3 miles south of I-4), west to SR 33, and east to Walt Disney World and Celebration. Four Corners has a total area of 180 square miles (470 km2). Four Corners is the only community in Florida to be located in four counties.