No. 10. Entrance to Black Canon, Colorado River, from above.

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Photo credit: © pf / Alamy / Afripics
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Keywords: .., archive, ariz, ariz., black, blackcanyon, canyon, colo, colo., colorado, coloradoriver, dc:coverage=1871, dc:identifier=, dc:identifier=httpdigitalgallerynyplorgnypldigitalid416602, geological, geologicalsurveys, history, library, mexico, nev, nev., newyorkpubliclibrary, photo, photograph, public, river, states, surveys, united, unitedstates, vintage, west, xmlns:dc=, xmlns:dc=httppurlorgdcelements11, york