Scientists have identified two enormous mountains hidden deep beneath the Earth’s surface, each standing an extraordinary 620 miles (1,000 kilometers) tall—more than 100 times taller than Mount ...

Arizona's highest point is near Flagstaff and provides scenic views. Here's what to know about the tallest mountain, including elevation and hiking.

Play the USA TODAY Daily Crossword Puzzle ... five tallest peaks in the Silver State. The fifth tallest peak, Mount Jefferson, is near Round Mountain in central Nevada's Nye County.

It's not just the elevation that makes this mountain special ... Humphreys, according to the United States Geological Survey. Humphreys was a U.S. Army officer and Union general during the ...