A recent study from the University of New Mexico has proposed a fascinating theory about the formation of the Grand Canyon.

The Grand Canyon is home to five different life zones, and its wildlife inhabitants are just as diverse as its terrain.

October 23 is 10th anniversary of Aliso Canyon natural gas leak at SoCalGas storage facility in Santa Susana Mountains.

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Karl Karlstrom, a geologist recently retired from the University of New Mexico, grew up in Flagstaff, Arizona. Grand Canyon ...

Recently, a video of a rope-free bungee jumping test on the Huajiang Grand Canyon Bridge, the newly opened world’s tallest ...

It's a brilliant November morning in the heart of the Grand Canyon, and the ribbon of cold, clear sky framed by mile-high walls is growing bluer by the minute. A gentle breeze moves upstream along the ...

The thought crossed my mind as I struggled to find a foothold while clinging to the loose chain-link railing. We were 15 minutes into a late-September, 1,488-foot ascent of Zion National Park’s Angels ...

The Genesee River runs along the bottom of a gigantic gorge, with picturesque views of three major waterfalls.

Utah trails reveal breathtaking landscapes, red rock formations, and natural wonders that make hiking here an unforgettable ...