Isopachs of net coal in the B and D coal zones, Deserado study area, Lower White River coal field, CO (des*thkg)

These are shapefiles and ARC/INFO polygon coverages showing the isopachs of total net coal in beds greater than or equal to 1.2' thick for the B and D coal zones, Deserado coal area, Lower White River coal field.

本数据集包含形状文件（shapefile）与ARC/INFO多边形覆盖数据，用于展示下怀特河煤田德塞拉多煤矿区B、D煤组内厚度不小于1.2英尺的煤层的总净煤量等厚线。