This vast area, on the Chequamegon-Nicolet National Forest, lies near the headwaters of the Chippewa River and several tributaries. It is a high, relatively flat ground moraine containing large poorly drained areas with higher ridges between the parallel trending forest wetlands. A characteristic feature of this area is extensive tracts of old-growth conifer wetlands, the majority located in low-lying areas between ridges and along southwest flowing streams. The uplands are forested in aspen, maple, and white birch, with scattered pockets of old-growth hemlock and white pine. Alder thickets, open bog, muskeg, and small patches of old red pine forest, floodplain forest, and upland openings also are present.
This site supports a multitude of priority species at high densities in both the wetlands and uplands. Notable are exceptional numbers of conifer-loving species such as black-backed woodpecker, olive-sided flycatcher, Nashville warbler, Blackburnian warbler, Cape May warbler, and pine warbler. A variety of wetland, shrub, and muskeg species such as American bittern, golden-winged warbler, mourning warbler, boreal chickadee, gray jay, and boreal finches such as purple finch, white-winged crossbill, and red crossbill also are found in high numbers.