Study limit boundaries for the Ferris 23, 25, 31, 50 and 65 coal zones, Hanna Basin, Wyoming (fer*stdyg)

These ArcView shapefiles contain representations of the
study areas for the Ferris coal zones in the Ferris coalfield,
Hanna Basin, Wyoming. These datasets were created
specifically for the National Coal Resource Assessment in
the Northern Rocky Mountains and Great Plains Region.

本数据集所包含的ArcView 形状文件（shapefile），涵盖了怀俄明州汉纳盆地费里斯煤田内费里斯煤组的研究区域。此类数据集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。