EarthWorks Geospatial Catalog

Stratigraphic nomenclature chart for Montana and adjacent areas [cartographic material] / compiled by C.A. Balster ; nomenclature committee, C.A. Balster ... [et al.].

"1st ed., 1963 ; 2d ed., 1971." On envelope: [Annotated photograph of] Crowfoot Ridge ... circa 1899, and Crowfoot Ridge explanation on verso. Includes text, column index map, and publication sources.
Montana Bureau of Mines and Geology
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