| Clip Of The Promise of the Grand Canyon
Report Video IssueJohn Wesley Powell's Contributions
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by mcgorry
September 19, 2018 2018-08-05T23:21:46-04:00https://images.c-span.org/Files/021/20180805232225002_hd.jpgAuthor John Ross discusses John Powell's contributions including those in Geology, Ethnology and Geomorphology.
by mcgorry
September 19, 2018 2018-08-05T23:21:46-04:00https://images.c-span.org/Files/021/20180805232225002_hd.jpgAuthor John Ross discusses John Powell's contributions including those in Geology, Ethnology and Geomorphology.
Author John Ross discusses John Powell's contributions including those in Geology, Ethnology and Geomorphology.