Several offices within the Illinois Department of Natural Resources (IDNR) offer resources on freshwater mussels. The Division of Fisheries Resources regulates commercial mussel harvest in the state and licenses commercial mussel collectors and shell dealers. The Illinois Natural History Survey studies current mussel populations in the state and maintains a large research collection of mussels. The Illinois State Museum provides tours and educational services through the Education Section. The IDNR Division of Education has aquatic education materials available for use by teachers.

Division of Fisheries One Natural Resources Way Springfield, IL 62702 (217) 782-6424 Illinois Natural History Survey Center for Biodiversity 1816 South Oak Street Champaign, IL 61820 (217) 333-1623

Division of Education One Natural Resources Way Springfield, IL 62702 (217) 524-4126 Illinois State Museum Quaternary Studies Program 1011 East Ash Street Springfield, IL 62703 (217) 785-0037 Education Section Spring and Edwards Streets Springfield, IL 62706 (217) 782-7386.