The two biggest land owners in New Mexico are the U.S. Government and Ted Turner (he has two ranches). So, much of the high plains and Chihuahuan Desert are used for either munitions tests (around Alamogordo and White Sands) or cattle grazing. Since there's so much land, it's cheaper to divide ranches with cattle guards rather than barb wire fences. The result? Range fed cattle wander free across the land with minimal fencing or restraints. Above is a contented heifer who is grazing land to the west of Truth or Consequences.