Spring Lake Woods and Bog has long been recognized as significant to preservationists due to its sphagnum bog, orchids, pitcher plants, and plant life distinctive of northern muckland woods. The preserve protects shoreline of Lake Everett, Allen County’s only natural lake. It is also home to the rare four-toed salamander, and features distinctive plant life including cypress-knee sedge, skunk cabbage, and large cinnamon ferns.
Deep in the bog, plant life is sensitive and ground is not solid enough for trails. The bog smells like rotten eggs and is surrounded by poison sumac. To protect it, the trail at this preserve does not go near the bog.