List of coalfields

The criteria for determining the approximate boundary of a coalfield are geographical and cultural, in addition to geological.

At one time the coalfield designation was an important category in business and industrial discussions.

The terminology declined into unimportance as the 20th century progressed, and was probably only referred to by a few small railroads and history buffs by the 1980s.

Renewed interest in industrial heritage and coal mining history has brought the old names of the coalfields before a larger audience.

Colombia has the largest coal reserves in Latin America and is a major exporter.