Drill hole locations within the Hanna Coal Beds 77, 78, 79 and 81 (ha*ptg)

These ArcView shapefiles contain representations of the Hanna 77, 78, 79 and 81 coal drill hole locations. These shapefiles were created specifically for the National...此类ArcView形状文件（ArcView shapefile）包含汉纳77、78、79及81号煤炭钻孔点位的空间矢量表达数据。该类形状文件专为国家[原文未完整]相关项目定制编制。