Poorly drained outwash and sand lake plain supported sedge meadows, bog, marsh, or conifer swamps of tamarack and black spruce. The pitted outwash and moraines supported forests of white oak, black oak, and bur oak. Fire and seasonal flooding both occurred commonly. Most of the dry barrens and poorly drained lake plain remain with original vegetation, but the poorly drained soils of the outwash plain have been ditched and converted to agriculture. Page Creek Marsh, Summerton Bog, Quincy Bluff.
Large areas consist of pine plantation.
Opportunities for large-scale conservation projects are outstanding due to large amounts of publicly owned land and relatively few competing uses for land by the private sector.