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QUARTZITE FORMATION NEAR SILVER CANYON PAHRANAGET LAKE DISTRICT NEVADA NARA .tif Scope and content General notes Local identifier WB Smithsonian Institution NARAAuthor O'Sullivan Timothy Photographer File QUARTZITEFORMATIONNEARSILVERCANYONPAHRANAGETLAKEDISTRICT NEVADANARA tif tif File QUARTZITEFORMATIONNEARSILVERCANYONPAHRANAGETLAKEDISTRICT