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:
BLACK CANYON LOOKING DOWN COLORADO RIVER NARA .tif Scope and content General notes Local identifier WA Smithsonian Institution NARAAuthor O'Sullivan Timothy Photographer File BLACKCANYONLOOKINGDOWNCOLORADORIVERNARA tif tif File BLACKCANYONLOOKINGDOWNCOLORADORIVERNARA NARAcooperation PDUSGov Black Canyon NARA TIF images