The Eureka Natural Area consists of two acres of wetlands.

The Bunker Nature Preserve consists of 130 acres of forest, native prairie, wetland and grassland. The wetlands are quite extensive and include emergent/open water, shrub and forested wetlands. Vernal ponds critical for amphibian species are found on the property.

The Iosco Natural Area consists of 75 acres of hardwood and evergreen trees. An attractive tributary of the Red Cedar runs through the property.

The Ionia Natural Area consists of a 130-acre tract of woodland and grassland located largely in the flood plain of the Grand River. The tract has approximately 1/2 mile of frontage on the Grand River and contains an island. A walking/bike trail runs along the north boundary of the property and a second one runs through the property with nice views of the Grand River.

The property is 7.7 acres and is located in Hillsdale County. It is fully wooded and has approximately 1,000 feet of frontage on Fourth (Bass) Lake. It is a biologically rich property with numerous species of Michigan trees and shrubs.

This 81 acre parcel is a natural area that contains 20 acres of wetland, 35 acres of grass and shrub land, and 25 acres of woods. Atherton Creek and the Looking Glass River flow through the property. Flood plains for the two waterways are present on the parcel.

This property is an uncommon type of wetland, a fen, which is characterized by alkaline conditions and the associated plants and animals that thrive in such conditions. Fens are rare in Michigan. This one is located in northeast Jackson Co. between two lakes.