Unioned layer of coal resource calculation in the southern Piceance Basin, Colorado (ps*fing)

These are shapefiles and coverages of final unioned polygon coverages used to calculate coal resources of the Cameo/Fairfield coal group east of 107 deg 15'...本数据集包含用于计算东经107°15′以东卡梅奥/费尔菲尔德（Cameo/Fairfield）煤组煤炭资源的最终合并多边形地理覆盖图层的两种格式数据：形状文件（shapefile）与地理覆盖图层（coverage）。