The production of bituminous coal has also increased very rapidly.
Both anthracite and bituminous deposits have been found.
The usual coal deposits of Alberta are of bituminous or semi-bituminous coal.
Sulphur is obtained near Apt (Vaucluse) and in a few other localities of south-eastern France; bituminous schist near Autun (Sane-et-Loire) and Buxires (Allier).
Springfield is a trading and shipping centre for a prosperous agricultural region, and ships large quantities of bituminous coal from the immediate vicinity.