Boundaries delimiting areas within which resources were calculated for A through D coal zones, Yampa coal field, CO (yam*bndg)

These are shapefiles and coverages that outline the areas underlain by the A, B, C, and D coal zones in the Yampa coal field. They delimit the area within which...本数据集包含形状文件（shapefile）与地理覆盖图层（coverage），用于勾勒扬帕煤田内A、B、C、D号煤层组赋存的区域。此类数据划定了...范围内的区域。