The province has inland water features. Based on national data, the province has altogether 93 rivers, including 18 major ones, namely the Amparo River in Macrohon, the Canturing River in Maasin City, the Das-ay and Pondol Rivers in Hinunangan, the Divisoria River in Bontoc, the Hitungao and Lawigan Rivers in Saint Bernard, the Maag River in Silago, and the Subangdaku River in Sogod which is the biggest of all. The province has an inland lake called Lake Danao located in the mountains of San Juan and Anahawan, towns in the eastern region.