• Area: 11.400 acres (4.613 ha)
• Date of Creation: September 23, 1985
• Altitude: 755 ft (230 m)

This reserve was established to protect Limoncocha and Yanacocha Lakes, and the nearby area. The importance of these lakes derives from the large population of black alligators and the great quantity of endemic birds found there. The reserve belongs to a marshy tropical forest life zone, with humidity normally above 80%. However, the area receives constant solar radiation, which raises temperatures above 85° F and lowers humidity to 50%. Some trees have developed leaves that bear the heat.