John Wesley Powell A professor of geology at Illinois ... Much has been learned about the geology of the Grand Canyon and about the history of life on earth since Powell and his crew made their ...

May 30 -- The party passes safely through its first three canyons: Flaming Gorge, Canyon of the Rapid ... August 8 -- Redwall Cavern, John Wesley Powell: "The water sweeps rapidly in this ...

As for John Wesley Powell, sooner or later his legacy as conqueror of the Grand Canyon will be fully realized on the red planet. Mars has its own canyon, far grander than ours: Valles Marineris ...

This story appears in the June 2013 issue of National Geographic magazine. The man who led a landmark attempt to navigate the entire length of the Grand Canyon did not exactly look the part of a ...

Its first director, John Wesley Powell (1834-1902), helped ... American History Engraved woodblock of "Marble Canyon" National Museum of American History Engraved woodblock of a "Bird's-eye view of ...