More than 200 soldiers with the 10th Mountain Division collectively climbed the Adirondack Mountain Range’s highest 46 peaks in a single day. The soldiers braved cold and wet weather to climb ...

Picturesque peaks stretch from coast to coast. The best mountain ranges in the U.S. offer stunning scenery, skiing, hiking, accessible viewpoints, and more.

Oceanographers studying an underwater mountain range found a variety of surprises, including being able to capture footage of an incredibly rare squid species and identifying a new species of octopus.