Merrill Creek Reservoir, located in Harmony Township, New Jersey in central Warren County, New Jersey,[1] is a 650-acre (260 ha) artificial lake designed to hold 15 billion gallons of water that is surrounded by 290 acres (120 ha) of protected woodland and fields.

In addition, by maintaining an ample Delaware River flow, seawater intrusion into the aquifers that provide drinking water to many South Jersey communities, including Camden, is minimized.

The entire site was cleared of dense forest by huge tree-eating machines, and construction crews worked two 12-hour shifts to build a large earth dam and two dikes.

Some of the abundant wildlife around the lake includes bald eagles, crows, white-tailed deer, wild turkey, and other various migratory birds.

[8] The lake's visitor center features natural history and cultural exhibits and offers environmental education programs for all age groups ranging from pre-K through adults.