Lanao del Sur is a province in the Autonomous Region in Muslim Mindanao, Mindanao, Philippines. One of the four provinces of the ARMM region in Northern Mindanao is Lanao del Sur. It is surrounded by the provinces of Lanao del Norte on the north, Bukidnon on the east, Illana Bay on the west and Cotabato and Maguindanao on the south. About Lanao Del Sur
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