Carved on a boulder resting at Mt. Data of Alab Oriente, Bontoc, Mt. Province is a remarkable plethora of 2nd millennium BC petroglyphs. The oldest and only kind of engravings that is discovered by far in the Cordillera Administrative Region of the Philippines. One of only two in the whole country with the other engraving, famously known as the Angono-Binganonan Petroglyphs, found in the province of Rizal. Giant Petroglyphs in South America May Mark Territorial Borders Ten Mysterious Rock Art Examples from the Ancient World Cultural Significance and Historical Context The petroglyphs were first discovered by a group of local farmers in the 1950s and then by a lumberman in the 1960s. The same man officially reported such discovery in 1972 for immediate documentation. In total, an estimate of 200 rock carvings were identified after close inspections by experts. They also believed that the petroglyphs were carved not earlier than 1,500 BC. With its suggested age, these remarkable engravings found within ancestral lands serve as proof that the culture and history of Cordillera indigenous tribes can be traced all the way back to the Bronze Age. Read moreSection: ArtifactsAncient WritingsAsiaRead Later