Feb 12, 2014 - The Los Lunas Decalogue Stone is a large boulder on the side of Hidden Mountain, near Los Lunas, New Mexico that bears an ancient inscription carved into a flat panel in the rock. The stone is also known as the Los Lunas Mystery Stone or Commandment Rock. The inscription is interpreted to be an abridged version of the Decalogue or Ten Commandments in a form of Paleo-Hebrew. The tetragrammaton YHWH, or "Yahweh," is written four times throughout the inscription. The stone is controversial in that some claim the inscription is Pre-Columbian, and therefore proof of early Semitic contact with the Americas.