Pond Creek Coal Zone County Statistics (Geology) in Kentucky, West Virginia, and Virginia

This dataset is a polygon coverage of counties limited to the extent of the Pond Creek coal bed resource areas and attributed with statistics on the thickness of the...本数据集为限定于庞德溪煤层（Pond Creek coal bed）资源区范围的县域多边形覆盖数据集，其属性包含有关……厚度的统计信息。