Figure 3. Coal Supply Regions Region States Northern Appalachia MD, OH, PA, Northern WV Central Appalachia Eastern KY, VA, Southern WV Southern Appalachia AL, TN Illinois Basin Western KY, IL, IN Gulf Coast Lignite TX, LA, MS Other Western Interior AR, IA, KS, MO, OK Powder River Basin WY, MT North Dakota Lignite ND Southwest AZ, NM Rockies CO, UT Northwest AK, WA    Notes: Labels indicate active areas in major coal supply regions. Peripheral areas are areas of little or no current coal production. States cited in each region are States currently producing coal. If inactive coalfields in other States begin producing, those States would be listed at that time.    Source: Energy Information Administration. Adapted from EIA's Map of Coal-Bearing Areas.

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