Deep beneath a limestone ridge in the Western Caucasus lies a shaft so profound that reaching its floor requires days of rope ...

(via MinuteEarth) Krubera Cave, one of our planet’s deepest known caves, extends 2200 meters into the earth – that’s a depth of nearly six Empire State Buildings. Or at least, that's as far down as ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A researcher was rescued on Sunday after being injured inside one of the deepest Texas caves in Terrell County, officials said. A ...

BOB MARSHALL WILDERNESS, Mont. — Montana calls itself home to the first and now second deepest cave in the continental United States. A team discovered Bobsled Cave in the Bob Marshall Wilderness, and ...

A researcher was rescued from Sorcerer’s Cave Sunday morning after a falling rock caused serious head and back injuries 470 feet underground. More than 60 personnel executed a grueling 17-hour ...

TERRELL COUNTY, Texas — A researcher was rescued from one of Texas' deepest known caves, according to the Texas Game Wardens. In a social media post, the Texas Game Wardens say a team was conducting ...