Major John Wesley Powell makes the first recorded trip through the Grand Canyon and down the length of the Colorado River. The one-armed Civil War veteran followed this expedition with a second ...

The Canyon is a Book of Revelations in the rock-leaved Bible of geology. - John Wesley ... Powell would often climb into the canyon to investigate. Much has been learned about the geology of the ...

T he river churns a muddy brown as it carries us through towering vermilion rock walls toward the roar of Gypsum Canyon Rapid ... of a name: Powell. That is Major John Wesley Powell, from the ...