Historian Natalia Mehlman Petrzela explores life, love and death on Earth's second-tallest peak in the new season of Extreme.

And California has the Sutter Buttes, which is often called the world's smallest mountain range. The mountains are about 60 miles north of Sacramento at the northern end of California's Central ...

The Alps, one of the most iconic mountain ranges in the world, stretch across eight countries in south-central Europe. This ...

The Andes are the world's longest mountain range. This causes lava to erupt out of the gap that is left. As it cools down, the lava creates a long line of mountains under the ocean called the Mid ...

What a flat, dull place the world would be without mountains. Formed over millions of years by relentless movements of the planet's crust, squeezing and lifting land upwards to the sky, mountain ...

The Custer Gallatin National Forest has authorized a controversial land swap involving more than 15 square miles of land in two different south-central Montana mountain ranges ...