Four Corners

geographical name

locality in the southwestern United States at the intersection of 37°N with 109°W where four states—Colorado, New Mexico, Arizona, and Utah—come together, the only such place in the country

Legal Definition

four corners

noun plural

four cor·​ners

: the contents of a document as interpreted without reference to or consideration of outside information : the face of a document

any evidence offered…must appear within the four corners of the will

—Crump's Estate v. Freeman, 614 P.2d 1096 (1980)