[10] During World War II, Lake Piso functioned as a military base for Allied seaplanes.

Flooding in August 1998 occurred due to a blockage of the narrow inlet connecting the lake to the Atlantic Ocean, damaging some homes.

The overcrowded wooden ferry was transporting approximately 200 passengers, most returning from the funeral of a local footballer.

[8] Prior to the outbreak of the First Liberian Civil War, the lagoon was a popular travel destination for tourists.

[25] High-quality diamonds have been mined from the rivers that discharge into Lake Piso where "igneous intrusions provide potentially rich structural traps".