The Unai Dangkulo Petroglyph Site is one of a small number of documented rock art sites in the Mariana Islands. Located on the northeastern shore of the island of Tinian in the Northern Marianas, it is the only such site composed exclusively of pictographs (that is, carved or pecked figures rather than painted ones). It is also uncommon in that it is not found in a cave-like setting, which is where most of the other rock art sites in the region are found.