Editing Ball's Pyramid (section)

==Geography==

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 {{convert|800|m}} west-northwest and west-southwest respectively, of the western extremity of Ball's Pyramid. Southeast Rock is a pinnacle located about {{convert|3.5|km}} southeast of Ball's Pyramid.<ref name=":0" />

The shelf is {{convert|20|km}} in length and averages {{convert|10|km}} in width and lies under an average depth of {{convert|50|m}} of water.<ref name="bpe"/> It is separated by a {{convert|500|m|ft|-deep|adj=mid}} [[submarine canyon]] from another shelf on which Lord Howe Island is located. The cliffs of the [[stack (geology)|stack]] continue under the water surface to the level of the shelf.