  We associate with a generalised deep hole of the Leech lattice vertex
operator algebra a generalised hole diagram. We show that this Dynkin diagram
determines the generalised deep hole up to conjugacy and that there are exactly
70 such diagrams. In an earlier work we proved a bijection between the
generalised deep holes and the strongly rational, holomorphic vertex operator
algebras of central charge 24 with non-trivial weight-1 space. Hence, we obtain
a new, geometric classification of these vertex operator algebras.
