  The Chip Firing Game (CFG) is a discrete dynamical model used in physics,
computer science and economics. It is known that the set of configurations
reachable from an initial configuration (this set is called the configuration
space) can be ordered as a lattice. We first present a structural result about
this model, which allows us to introduce some useful tools for describing those
lattices. Then we establish that the class of lattices that are the
configuration space of a CFG is strictly between the class of distributive
lattices and the class of upper locally distributive (or ULD) lattices. Finally
we propose an extension of the model, the coloured Chip Firing Game, which
generates exactly the class of ULD lattices.
