.Mar 28, 2016 ... U.S. Fish & Wildlife Service. Kingman ReefNational Wildlife Refuge | US Minor Outlying Isls. A Unit Of The National Wildlife Refuge System..Kingman Reef /ˈkɪŋmən/ is a largely submerged, uninhabited triangular shaped reef, 9.5 nautical miles (18 kilometres) east-west and 5 nautical miles (9 ....Kingman Reef lies 382 nautical miles north of the equator. It is about 33 miles northwestward of Palmyra Island and 925 miles south by west of Honolulu.