Lake Piso
| Lake Piso | |
|---|---|
| Location | Grand Cape Mount County |
| Coordinates | 6°44′7″N 11°15′4″W / 6.73528°N 11.25111°W |
| Primary inflows | various rivers |
| Primary outflows | inlet to the Atlantic Ocean |
| Basin countries | Liberia |
| Max. length | 19 mi (31 km) |
| Max. width | 10 mi (16 km) |
| Surface area | 103 km2 (40 sq mi) |
| Islands | several (Massatin Island) |
| Designated | 2 July 2003 |
| Reference no. | 1306 |
Lake Piso, also known as Lake Pisu and Fisherman's Lake, is an oblong tidal lagoon in Grand Cape Mount County in western Liberia, near the town of Robertsport. Its name originates from a local term meaning "pigeon's hole" – a reference to the flocks of pigeons that once came to Lake Piso for water.