08/28/2026
Hatchery biologists collaborated with the U.S. Army Corps of Engineers, National Park Service, and Iowa DNR to stock Higgins Eye Pearlymussel into the Mississippi River to make up for impacts to the federally endangered species. A project is designed to protect the effigy mounds above Sny Magill Boat Landing that may impact the mussel beds nearby. Photo: tagged freshwater mussels in a net and staff members in the water. Photo credit: USFWS.