Powder River Basin boundary, 1999 Coal Resource Assessment (prbbndg.shp)
收藏USGS-Science Data Catalog2026-03-28 收录
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https://data.usgs.gov/datacatalog/data/USGS:60ad0fffd34e4043c850dfe0
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资源简介：
This ArcView shapefile contains a polygon representing
the boundary of the Powder River Basin based on a
generalized contact of Cretaceous and Tertiary rocks.
This theme was created specifically for the National
Coal Resource Assessment in the Northern Rocky
Mountains and Great Plains Region.
创建时间：
2026-03-28
