Cooley Lake was once the main channel of the Missouri River as it flowed along the north side of the river bottom. When the river changed course, a deep oxbow lake resulted.
Union Ridge Conservation Area is located in Adair, Putnam and Sullivan counties. Bisected by Spring Creek, this 8,262-acre area is a mosaic of woodlands, grasslands, old fields, prairie, savanna, and forest.
Amarugia Highlands Conservation Area is located in a region once known as "The Kingdom of Amarugia," where a group of people formed their own government and had their own society.
Ella Ewing Lake CA was purchased in 1967. The lake had previously been built by the United States Department of Agriculture as part of the Bear Creek Watershed Project and was intended to be a flood control structure.