Bridge to Span the Grand Canyon

By Far the Loftiest Structure Ever Planned to Cross from Wall to Wall of the World's Profoundest Gorge

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Scientific American Magazine Vol 133 Issue 6This article was originally published with the title “Bridge to Span the Grand Canyon” in Scientific American Magazine Vol. 133 No. 6 (), p. 390
doi:10.1038/scientificamerican1225-390