The island's pristine largest section is managed by the "United States Fish and Wildlife Service" as the "Parker River National Wildlife Refuge", while the "Massachusetts Audubon Society" operates the "Joppa Flats Education Center & Wildlife Sanctuary".
The island's pristine largest section is managed by the "United States Fish and Wildlife Service" as the "Parker River National Wildlife Refuge". On the mainland opposite "Massachusetts Audubon Society" operates the "Joppa Flats Education Center & Wildlife Sanctuary".