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（shapefiles）与覆盖数据集（coverages），用于勾勒扬帕煤田（Yampa coal field）内A、B、C、D四组煤层下伏的区域范围，此类数据可划定...范围内的区域。