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Google Analytics Dashboard for Thickness of Upper Cretaceous rocks from the base of the Niobrara Formation to the top of the Frontier Formation, including the Carlile Shale, Greenhorn Formation, and Sage Breaks Shale, Powder River basin, Wyoming and Montana

Thickness of Upper Cretaceous rocks from the base of the Niobrara Formation to the top of the Frontier Formation, including the Carlile Shale, Greenhorn Formation, and Sage Breaks Shale, Powder River basin, Wyoming and Montana

URI: https://pubs.usgs.gov/publication/ofr87340L

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