2020: The Breadknife, a trachyte dyke (formed 18-13 Ma), along with plug known as Belougery Spire, dominate the Warrumbungles landscape. Only the radial dykes emanating from Ship Rock are more spectacular.
The Grand High Tops trail will take you along the base of the Breadknife and then above it.
2020: Crater Bluff (trachyte) and Tonduron Spire (trachyandesite) are classic examples of volcanic plugs found in the Warrumbungles range, a volcanic complex formed in the mid-Miocene.