This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Contorted Limestone West Humboldt Mountains Nevada NARA .tif Scope and content General notes Local identifier KW War Department Office of the Chief of Engineers Geological Exploration of the Fortieth Parallel NARAAuthor O'Sullivan Timothy Photographer File ContortedLimestone WestHumboldtMountains NevadaNARA tif tif File ContortedLimestone