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History Sleuth Explores Cordillera's Little Known 3,500-Year-Old Alab Petroglyphs
Carved on a boulder resting at Mt. Data of Alab Oriente, Bontoc, Mt. Province is a remarkable plethora of 2 nd millennium BC petroglyphs. The oldest and only kind of engravings that is discovered by far in the Cordillera Administrative Region of the …