Kankakee Sands is a 10,000-acre (4,000 ha) restored tallgrass prairie in Kankakee County, Illinois and Newton County, Indiana. It is managed by The Nature Conservancy staff and volunteers. The Efroymson Restoration at Kankakee Sands is 8,400 acres (3,400 ha) of prairies and wetlands connecting Willow Slough Fish and Wildlife Area, , Conrad Savanna Nature Preserve and Conrad Station Savanna. This creates over 20,000 acres (8,100 ha) of dry, mesic and wet sand prairies, sand blows, sedge meadows, wetlands, and black oak savannas.