Net coal thickness in the Hanna 77, 78, 79 and 81 coal zones of Hanna Basin, Wyoming (ha*catg)
收藏U.S. Geological Survey1999-01-01 更新2026-04-23 收录
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资源简介：
These ArcView shapefiles contain representations of the net coal thickness in the Hanna 77, 78, 79 and 81 coal zones, Hanna coalfield, Hanna Basin, Wyoming. These datasets were created specifically for the National Coal Resource 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
