The Altamira Cave painting which Spain which is a world-wide cave painting will know, France Grotte de Lascaux painting, observes the France Chauvet Cave and sees and about Choungryongdo with the Sangyoungchong which are an ancient tomb mural of Korea introduces. This paper provides an overview of the rock art of the Northern Mariana Islands and particularly as the rock art discovered to date predominantly pertains to ancestor worship within the Chamorro cultural group. For centuries, the Western world has categorized the ancient Chamorro inhabitants of the Marianas Archipelago as a "prehistoric" people; a people without a written history. In addition to providing an overview of the rock art of the Northern Mariana Islands, this paper also emphasizes the fact that the ancient Chamorros did indeed have a recorded history and that this chronological record exists in the pictographs and petroglyphs that they painted and carved.