. Bulletin of the Geological Society of America. Geology. Figure 1.—Platy Parting of a DioRrTE-poRrHVRY Dike, two Miles Southwest of Gold Butte Post-Office. Figure 2.—Distant View of East Butte, looking East DIORITE-PORPHYKY DIKE AND VIEW OF EAST BUTTE, SWEET GEASS HILLS, MONTANA. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Geological Society of America. [New York : The Society]

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeology, bookyear1890