In the afternoon, while his crew set up camp for the night, Powell would often climb into the canyon to investigate. Much has been learned about the geology of the Grand Canyon and about the ...

Ryan Crow of the U.S. Geological Survey (USGS) gave a talk to a packed crowd at the Museum of Northern Arizona Jan. 12 ...

Grand Canyon aficionados debate which overlooks ... and there are lots of stops en route including the main visitor center, the Yavapai Geology Museum, Hopi House, the El Tovar Hotel, and Kolb ...

Both giving a visible indication of how old they are. Liz Bonnin introduces the Grand Canyon with its complex and very ancient geology. The Grand Canyon was carved out of rock by the Colorado ...

The Grand Canyon is the biggest canyon on earth ... In 1869, a one-armed Civil War veteran and geology professor named John Wesley Powell led an expedition to chart the wild Colorado and make ...

Current projects include study of the surface uplift history of the Colorado Rockies, the incision history of the Grand Canyon, and deciphering when and why Australia’s Great Escarpment formed. I love ...

There's nothing quite like the Grand Canyon. This natural marvel has wowed generations, and while the view alone is worth the ...