Mount Monadnock, the southern terminus of the MSG, is the most prominent peak of southeast New England. At high, it is higher than any mountain peak within and rises above the surrounding landscape. Its bare, rocky summit provides expansive views. Eliza Adams Gorge is a scenic and rocky eastern hemlock-clad ravine located just below the dam spillway on Howe Reservoir. The Nye Meadow Refuge is an important great blue heron rookery managed by the Audubon Society of New Hampshire. Otter Brook and Andorra Forest, , collectively the largest conservation area in southwest New Hampshire, are cooperatively managed by The Nature Conservancy and the Society for the Protection of New Hampshire Forests and include extensive tracts of northern hardwood forest, wetlands, and rare plant communities. Pitcher Mountain, , Hubbard Hill, , and Jackson Hill, , offer wide views from upland heath barrens and blueberry fields.