Coal overburden thickness of Knobloch coal zone from 1999 National Coal Resource Assessment (knovbg.shp)
收藏U.S. Geological Survey1999-01-01 更新2026-04-23 收录
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https://www.sciencebase.gov/catalog/item/60ac0a40d34ea221ce51fe35
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资源简介：
This ArcView shapefile is a polygon representation of the overburden thickness above the Knobloch coal resource unit in the Powder River Basin. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.
提供机构：
United States Geological Survey
创建时间：
1999-01-01
