The majority of Hartley Reservoir WMA is made up of shallow flooded impoundments that
were formerly part of an active cranberry bog operation. Common wetland vegetation on the
property includes red maple, sweet pepperbush, water milfoil, water lily, reedgrass, and
buttonbush, with the upland portions dominated by white pine, red oak, black oak, red maple,
black cherry and lowbush blueberry.