Texhomex, State boundary marker in New Mexico, United States.

Texhomex is a boundary marker located at the precise point where New Mexico, Texas, and Oklahoma meet. The stone sits at a T-intersection in a remote area, marking the exact geographic location of this three-state junction.

A surveyor named John H Clark established this boundary point during an 1859 survey. His measurements, however, were inaccurate and placed the marker several miles west of where the 103rd meridian was intended to be.

Geographic enthusiasts and boundary hunters regularly travel to this marker to document their visits to all three states simultaneously.

Texhomex sits about two miles east of U.S. Highway 56 along Texas State Line Road, at the corner with Oklahoma State Line Road; no signs are posted on Highway 56 in either direction. The marker itself is typically covered by soil, so look for the concrete pillar visible from a nearby fence and the witness post and sign a short distance away.

The Cimarron Meridian initial point, marked by a concrete pillar and a sign, stands about 350 feet (110 m) north of the Texhomex corner. The Texhomex marker itself is usually covered by soil, so only a concrete pillar is visible from the nearby fence.