Fire Clay Coal Zone Original Resources by County in Virginia, Kentucky, and West Virginia

This dataset is a polygon coverage of counties limited to the extent of the Fire Clay coal zone resource areas and attributed with original resources (millions of...本数据集为限定于火粘土层煤区（Fire Clay coal zone）资源范围的县域多边形覆盖范围，并附带原始资源量（单位：百万……）属性。