The origin story of Hells Canyon, North America's deepest river gorge, has long been unclear to scientists. But new research estimates it formed about 2.1 million years ago when a dramatic flood event ...

Massive ice formations near Pictured Rocks and Eben are attracting thousands of visitors. What to know in 2026.

The origin story of Hells Canyon, North America's deepest river gorge, has long been unclear to scientists. But new research estimates it formed about 2.1 million years ago when a dramatic flood event ...

Few movie and TV locations are as eternal and easily accessible as the Bronson Caves. Just two miles northeast of Hollywood & Vine in a canyon on Griffith Park's western edge, the caves have served ...

Hells Canyon, the deepest river gorge in the United States, likely got rapidly carved 2.1 million years ago when a shifting landscape in Idaho caused a giant lake to start overflowing. That's ...

North America's deepest gorge, Hells Canyon, which slithers along the border of Idaho and Oregon, is a surprisingly new addition to the Earth's ancient landscape. A recent study suggests that a ...

That’s according to a new study that looked at ancient river sediments that have long been hidden away inside the canyon’s caves, which now lie high above today’s Snake River. This new work is ...

Carlsbad Caverns National Park is known for its caves, but there’s a lot more to the national park, which celebrates its centennial this year. “The combination of the desert ecosystem, being so kind ...

The marvels of the Grand Canyon extend beyond its dramatic scenery. Underground, vast cave systems hold clues to the region’s ...

Scientists are learning more about how water moves through the Grand Canyon, and how what happens above ground affects what ...

While Arizona is famous for its stunning landscapes and dramatic rock formations, some of the best things to see here are underground. Arizona has numerous famous caves — some readily open to the ...

The ongoing drought in Comal County is causing water levels at Canyon Lake to fall to record lows — and uncovering geological features not seen in recent times. Low water levels recently exposed a ...