of all Philippine mountains, and peopled by the Bagobo, Manobo, Mandaya, Bilaan and other ancestral tribes. Website: http://en.wikipedia.org/wiki/Davao_City http://www.resortsphilippine.com/davao_info.php Location: The City of Davao ( Tagalog : Lungsod ng Dabaw ; Cebuano Language : Dakbayan sa Dabaw ) is the largest city on the island of Mindanao in the Philippines .