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The San Juan River has carved deep, improbably curvy meanders into the desert landscape.
The third-largest island in the Mediterranean Sea exposes an ancient piece of the ocean floor and hosts a clowder of…
Amid the warm hues of fall foliage, Pine Creek Gorge forms a deep scar in the Allegheny Plateau.
A national monument since the 1920s, Chiricahua is America's newest national park.
Fall color covers the forested slopes of Bieszczady National Park, while patches of polonina, a type of high-mountain meadow, have…
If the thought of extraterrestrial objects crashing into Earth weren’t creepy enough, behold Australia’s Spider Crater.
A new map of the terrain beneath the Greenland Ice Sheet links hundreds of valleys that previous maps missed or…
An amateur astronomer scouting online satellite maps for campsites in Quebec found an impact crater instead.
Mexico’s second-largest metropolitan area borders on folded rock layers of the Sierra Madre Oriental.
