Q. In which state are the Jharia coal mines located?
Answer: Jharkhand
Notes: The Jharia coalfield is in Dhanbad district, Jharkhand. It spans 110 square miles in the Damodar River valley. Mining started there in 1894. It contains high-quality coking coal. Bharat Coking Coal Limited operates over 20 mines in the area. The mines have had underground fires since 1916, causing environmental challenges. Coordinates for Jharia confirm its position in Jharkhand. Bihar’s reference is outdated as Jharkhand separated from Bihar in 2000.