The "Little Grand Canyon" of Mississippi is a lesser-known geological marvel that offers a look at an ever-changing landscape ...

Most people see the Central Valley as all agriculture,” one paleontologist said, but it’s a rich source of prehistoric ...

Kenneth Sims and other research scientists recently discovered that mafic volcanism of Henrys Fork Caldera -- located in ...

Part of the Greater Yellowstone Ecosystem, Grand Teton National Park is home to the stunning Teton Mountains. It boasts ...

Check out 24 of the world’s must unusual landscapes — from the hellish Darvaza Gas Crater in Turkmenistan to the “snow ...

Death Valley is the hottest, driest and lowest national park in the US – and arguably the most visually arresting.