Formed by a volcanic collapse thousands of years ago, Crater Lake sits within a vast caldera in Oregon. Its clarity and depth ...

This remote, volcanic South Pacific island in the Solomon chain is an under-the-radar haven that awards adventurous travelers ...

Located in the Cotopaxi Province of central Ecuador, Quilotoa Lake is a stunning water-filled caldera formed from a collapsed ...

Stunning ice formations surrounded Lake Michigan on Monday, December 15, as frigid temperatures gripped the area that morning. Drone footage captured by Nathan Voytovick of Nate’s Dronography shows ...

Africa is home to some of the most extreme treks, including volcanic crater rim hikes. These treks offer adventurers a chance ...

Some of the most dangerous ice, according to outdoors officials, is what's known as "shelf ice" forming along the Great Lakes ...

The USGS has released dramatic footage as the Kilauea volcano erupts, forming rare 12 metre dome-shaped lava fountains.

Often spotted by onlookers in Hawai‘i Volcanoes National Park, or even by YouTube livestream viewers, the long, ashy gray or brown, ropy cloud-like structures tend to appear near or downwind of active ...

Lake Eyre is enormous, and unusual: it both has no outflow and is filled by water derived from rain and flooding alone.

The United States has a habit of showcasing its geology. Long before cities and highways showed up, forces beneath the ...

In ʻŌlelo Hawaiʻi, or the Hawaiian language, we might call them puahiohio, or whirlwinds. In meteorological terms, these small twisters are technically dust devils, or more precisely, ash devils, ...

Thin, seasonal ice may have protected ancient lakes on Mars, allowing liquid water to last for decades despite cold ...