Like Lord Howe Island and the Lord Howe Seamount Chain, Ball's Pyramid is based on the Lord Howe Rise, part of the submerged continent of Zealandia. Ball's Pyramid has a few satellite islets. Observatory Rock and Wheatsheaf Islet lie about west-northwest and west-southwest respectively, of the western extremity of Ball's Pyramid. Southeast Rock is a pinnacle located about southeast of Ball's Pyramid.