Aerial photo Sand Island, Midway Atoll, showing its installations.
U.S. Fish and Wildlife Service
U.S. Fish and Wildlife Service <a rel="nofollow" class="external text" href="https://www.fws.gov/midway/monument.html">Papahānaumokuākea Marine National Monument Management Plan</a>, <a rel="nofollow" class="external text" href="https://www.fws.gov/midway/Volume%20IV%20of%20Plan.pdf">Volume IV - Midway Atoll Conceptual Site Plan</a>, p. 15.