Illinois Department of Natural Resources

Illinois River Road National Scenic Byway

U.S. Fish and Wildlife Service

Environmental Protection Agency (EPA)
Office of Water: Wetlands

Village of Hennepin, Illinois

National Wetlands Inventory

Journal of the Society of Wetland Scientists

Chicago Wilderness

Illinois Steward Magazine

Midewin National Tallgrass Prairie

Audubon: Important Bird Areas Program

Gulf Hypoxia - Louisiana Universities Marine Consortium