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Keywords from Image Description:
Tertiary Bluffs. Echo Canyon Utah NARA . Scope and content General notes Local identifier KN War Department Office of the Chief of Engineers Geological Exploration of the Fortieth Parallel NARAAuthor O'Sullivan Timothy Photographer File TertiaryBluffs EchoCanyon UtahNARA tif tif File TertiaryBluffs EchoCanyon UtahNARA NARAcooperation