Simplify the following text for a Grade 11 native English-speaking person.
Original: It also contains the second largest lake in Haiti Lake Peligre , which was created as a result of the construction of the Peligre Hydroelectric Dam on the Artibonite River during the 1950s .
Simplified: Lake Peligre , the second largest lake in Haiti , is in this department ; it is an artificial lake created with the construction of the Peligre Dam on the Artibonite river .