The Huluga Caves are located inside the Huluga archaeological complex in

Cagayan de Oro Cagayan de Oro (abbreviated CDO and officially the City of Cagayan de Oro; ; Bukid language, Binukid: ''Ciudad ta Cagayan de Oro''; ; ) is a Cities of the Philippines#Legal classification, highly urbanized city in the Regions of the Philippi ...

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

. They are on the brow of a limestone cliff on the eastern side of Cagayan de Oro River. The cave complex was discovered by a resident who then notified the Xavier University – Ateneo de Cagayan. The University then sent for the National Museum of the Philippines in Manila which sent representatives in 1971 to survey the area. Skeletal remains and artifacts found in the caves were estimated to date back to 377 A.D. through the racemization dating technique conducted by the University of California's Scripps Institution of Oceanography.

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