Obsidian flakes from Obsidian Hill, sitio Huluga, barangay Taguanao Cagayan de Oro. Found during surface scanning by members of the Heritage Conservation Advocates (HCA) in 2003. Few samples found at Xavier Estates Phase 5. On display in Museo de Oro, Xavier University, Capitol University Museum of Three Cultures, and the City Museum of Cagayan de Oro.