Science
Pennsylvania’s Grand Canyon
Amid the warm hues of fall foliage, Pine Creek Gorge forms a deep scar in the Allegheny Plateau.
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Science
Amid the warm hues of fall foliage, Pine Creek Gorge forms a deep scar in the Allegheny Plateau.
Science
A national monument since the 1920s, Chiricahua is America’s newest national park.
Science
Fall color covers the forested slopes of Bieszczady National Park, while patches of polonina, a type of high-mountain meadow, have turned tan.