![Geology of the Rocky Mountains / Mancos Shale / Elk Point Group / Beaverhill Lake Group / Stratigraphy / Geology / Geography of Canada Geology of the Rocky Mountains / Mancos Shale / Elk Point Group / Beaverhill Lake Group / Stratigraphy / Geology / Geography of Canada](https://www.pdfsearch.io/img/ceae60a6c96f0e85c77c6fde9e3ac201.jpg) Date: 2014-01-18 09:40:07Geology of the Rocky Mountains Mancos Shale Elk Point Group Beaverhill Lake Group Stratigraphy Geology Geography of Canada | | Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1975 By GEORGE V. COHEE and WILNA B. WRIGHT CONTRIBUTIONSAdd to Reading ListSource URL: ngmdb.usgs.govDownload Document from Source Website File Size: 1,37 MBShare Document on Facebook
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