Overburden above the Wyodak-Anderson coal zone in the Gillette coalfield, Wyoming (gilovbg.shp)

This ArcView shapefile contains a polygon representation
of overburden thickness above the Wyodak-Anderson
coal zone in the area of Gillette coalfield, Wyoming.
This theme was created specifically for the National Coal
Resource Assessment in the Northern Rocky Mountains
and Great Plains Region

本ArcView形状文件（ArcView shapefile）采用多边形矢量表达方式，展示了美国怀俄明州吉莱特煤田区域内怀俄达克-安德森煤层上方的覆盖层厚度分布。本专题图层专为落基山脉北部与大平原地区的国家煤炭资源评估项目定制开发。