Lanao del Sur (Philippines)

Lanao del Sur (Filipino: Timog Lanao; Meranaw and Iranun: Pagabagatan Ranao; Jawi (Batang Arab): لاناو الجنوبى‎), officially the Province of Lanao del Sur, is a province in the Philippines located in the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM). The capital is the city of Marawi (the most populous in the province), and it borders Lanao del Norte to the north, Bukidnon to the east, and Maguindanao del Norte and Cotabato to the south. To the southwest lies Illana Bay, an arm of the Moro Gulf. Situated in the interior of Lanao del Sur is Lake Lanao, the largest lake in Mindanao.