Kettle River SNA
This sites elevation varies across the SNA by nearly 100 feet, providing a range of growing conditions for native plant communities. In the southern third of the site, floodplain forest is represented by silver maple, black ash, basswood and elm. In contrast, the poorly drained lowlands in the central and northern parts of the site are occupied by sedge meadows, cattail marsh, willow/alder shrub thickets, and mixed woodlands of black spruce, tamarack, yellow birch, and balsam fir.