[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".