Net coal thickness in the Hanna 77, 78, 79 and 81 coal zones of Hanna Basin, Wyoming (ha*catg)

These ArcView shapefiles contain representations of the net coal thickness in the Hanna 77, 78, 79 and 81 coal zones, Hanna coalfield, Hanna Basin, Wyoming. These...本数据集包含的ArcView shapefile（ArcView shapefile）格式文件，存储了美国怀俄明州汉纳盆地汉纳煤田汉纳77号、78号、79号及81号煤层组的煤层净厚度空间表征数据。