Autumn Paints Poland’s Bieszczady Mountains
Autumn Paints Poland’s Bieszczady Mountains

Fall color covers the forested slopes of Bieszczady National Park, while patches of polonina, a type of high-mountain meadow, have turned tan.

An Impact Structure With Legs
An Impact Structure With Legs

If the thought of extraterrestrial objects crashing into Earth weren’t creepy enough, behold Australia’s Spider Crater.

Uncovering the Valleys Hidden Below Greenland’s Ice
Uncovering the Valleys Hidden Below Greenland’s Ice

A new map of the terrain beneath the Greenland Ice Sheet links hundreds of valleys that previous maps missed or left fragmented.

Monterrey Amid Mountains
Monterrey Amid Mountains

Mexico’s second-largest metropolitan area borders on folded rock layers of the Sierra Madre Oriental.

The Otherworldly Geology of Vasquez Rocks
The Otherworldly Geology of Vasquez Rocks

Layers of sedimentary rock that jut from the Soledad Basin at surprising angles have long enthralled television and film producers, including the team behind Star Trek.

How the Tide Turns at the Mouth of the Elbe
How the Tide Turns at the Mouth of the Elbe

The ocean’s ebbs and flows reveal dynamic tidal flats and a well-traveled shipping route along the coast of Germany.

Olympic Mountain Glory
Olympic Mountain Glory

Snow-capped mountains carved by deep river valleys preside over northwestern Washington state.

Why Maine’s Sandy Shorelines Turn Jagged
Why Maine’s Sandy Shorelines Turn Jagged

Differences in the underlying bedrock and how rivers distribute sediment make the coastlines west of Portland look unlike those northeast of the city.

Shaping the Emerald City
Shaping the Emerald City

The hills and basins of Seattle, Washington, have been sculpted by glaciers and modified by humans.

Fans of the Arctic
Fans of the Arctic

Sediment eroded from ice-capped mountains splays out across a broad river valley on Russia’s Severny Island.