Home About Us History of Cagayan de Oro Heritage Structures Primer on Huluga (English and Visayan) Chronology of Huluga Manifesto of Protest Fossils and Artifacts Archaeological Exploration Reports Government documents History Lost by Anemon Productions Views Contact Us	Archaeological Exploration Reports Angel P. Bautista: "Archaeological Exploration in Cagayan de Oro and Vicinities" Dr. Erlinda Burton: "Exploration of Huluga Sites" Luis E. Ostique: "Kros Rockshelter Exploration" Dr. Rolando Borrinaga: Calatagan Pot and Ticao Stones Published by the Heritage Conservation Advocates, Cagayan de Oro, Philippines, July 2003. Updated Dec. 18, 2013.