The Grand Canyon’s uranium mining debate heats up with new discoveries and Indigenous opposition. Energy demands and ...

Looking for some bucket-list travel ideas? You can't go wrong with these natural wonders—though you might not believe your ...

just a short distance from the Grand Canyon. Discover the volcanic landscape of Sunset Crater Volcano or the awe-inspiring ...

The Grand Canyon reminds us constantly that we are merely specks in the history of the earth and universe. When asked, I tell people the hardest thing about running the canyon is not the rapids ...

Locations: Grand Canyon National Park, Fredonia, Arizona #2) Volcanoes are vents where lava, tephra, and steam erupt onto the Earth's surface. Over 160 active and potentially active volcanoes are ...

For more information, visit Sunset Crater Volcano National Monument's website. Grand Canyon Sunset Hiking Adventure Deep Below The South Rim (36 reviews) Grand Canyon Sunset Tour from Flagstaff ...

The gigantic Yellowstone Grand Canyon, lined with volcanic rock. With all the effects of hydrothermal activity, river erosion ...

Highlights of the company's Grand Canyon Explorer Tour include spectacular viewpoints along the South and East rims, visits to Sunset Crater Volcano National Monument, Wupatki National Monument ...

From Grand Canyon to Petrified Forest to Saguaro National Park, here are the best things to do in Arizona's most beautiful places.

Dichotomy of Hemispheres, The Red Planet has disparity between its northern and southern hemispheres. NASA’s Mars ...