| Lake Mainit | |
|---|---|
 | |
.svg)  Lake Mainit Location within the Philippines | |
| Location | Mindanao |
| Coordinates | 9°25′57″N 125°31′22″E / 9.43250°N 125.52278°E |
| Type | Oligotrophic Freshwater lake |
| Primary inflows | 28 creeks and rivers |
| Primary outflows | Calinawan River |
| Catchment area | 870.72 km2 (336.19 sq mi) |
| Basin countries | Philippines |
| Max. length | 29.1 km (18.1 mi) |
| Surface area | 173.4 km2 (67.0 sq mi) |
| Average depth | 128 m (420 ft) |
| Max. depth | 223 m (732 ft) |
| Water volume | 22.2 km3 (5.3 cu mi) |
| Shore length1 | 62.1 km (38.6 mi) |
| Surface elevation | 42 m (138 ft) |
| Settlements | |
| References | [1][2] |
 | |
| 1 Shore length is not a well-defined measure. | |
Lake Mainit is the fourth largest lake in the Philippines, having a surface area of 173.40 square kilometres (66.95 sq mi).[2][3][4] The lake is also the deepest lake in the country with maximum depth reaching 223 metres (732 ft).[2][5] It is located in the northeastern section of Mindanao and shared between the provinces of Surigao del Norte and Agusan del Norte.
