Roi-Namur Island, Kwajalein Atoll, Republic of the Marshall Islands
The northernmost, second largest island of Kwajalein Atoll is Roi-Namur. At one time Roi and Namur were separate islands, connected by a narrow neck of land. Between 1940 and 1945, the area between the islands was filled with sand dredged from the lagoon, and the separate islands became one. Learn more about USGS studies on Roi-Namur.