- Martin National Wildlife RefugeC/O Chesapeake Marshlands National Wildlife Refuge Complex 2145 Key Wallace Drive Cambridge, MD 21613-9536
First established in 1954 through a 2,569 acre donation by the late Glenn L. Martin, the Martin National Wildlife Refuge now covers 4,548 acres, including the northern half of Smith Island, 11 miles west of Crisfield, Maryland, and Watts Island, located between the eastern shore of Virginia and Tangier Island in lower Chesapeake Bay.