Beneath the vast Arizona sky, the Secret Pass Jeep Trail unveils a breathtaking journey into the heart of history and nature.

Interior Department officials are considering scaling back the boundaries of national monuments in the West to encourage ...

The Grand Canyon is, to put it simply... grand. Those views you hear about? They’re just as jaw-dropping as they’re rumored ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

Geologic maps don’t make headlines. You probably haven’t seen one unless you work in energy, construction, or science. Yet, ...

The Astrogeology Science Center, which has helped astronauts and robots reach other worlds safely, is facing a substantial ...

US Geological Survey geologists estimated large potential for—and large uncertainty about—the amount of hydrogen ...

U.S. News Insider Tip: Since parking is hard to find beyond the visitor center's main parking lot, opt for one of the park's free shuttles and pack a bag with a water bottle, a hat, sunscreen and ...

COOLIDGE — The Pinal Geology and Mineral Museum on Saturday had its second “Geology Book Giveaway” with hundreds of books, pamphlets, magazines and other texts available for free. The event was also ...

Developed by the U.S. Geological Survey, or USGS, during the first Trump administration, Earth MRI aims to comprehensively map the nation’s underground deposits of “critical minerals” — an ...

Sam Pillsbury, the 78-year-old owner of Pillsbury Wine Company, is seeking to sell his 80-acre vineyard in Willcox, Arizona, for $1.45 million. Pillsbury, a former filmmaker, helped pioneer the ...