An area of land used for the extraction of coal.

A geographic region where a significant amount of coal is found.

कोयला जोन

English Usage: The coal field in that region has been a major source of employment for decades.

Hindi Usage: उस क्षेत्र का कोयला जोन दशकों से रोजगार का प्रमुख स्रोत रहा है।