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:
View of part of East Rim Trail from Observation Point. Showing switchbacks also switchbacks on Hidden Canyon Trail. NARA .tif Scope and content General notes Local identifier ZBCZ Department of the Interior National Park Service NARAAuthor Grant George Photographer File ViewofpartofEastRimTrailfromObservationPoint Showingswitchbacks