Waihanga i tētahi putanga matatini ake o tēnei rerenga Duke Island he motu i roto i te Gravina Islands o te Alexander Archipelago i te taha tonga-rawhiti o te US kawanatanga o Alaska.
Ko te tikanga, ko te putanga matatini ake o te rerenga korero ko "Ko te Moutere o Duke he moutere i roto i nga Moutere o Gravina o te Alexander Archipelago i te tonga-rawhiti o Alaska, i, i te raki o te rohe o Kanata. "