Survival World on MSN

Grand Canyon’s “Forbidden Zone”: For 100 Years, the Smithsonian Denied It - Now a Ranger Says He Found Proof

Every good American mystery has a dateline. This one starts in April 1909. According to a century-old story in the Arizona ...
Backroad Planet on MSN

Inside the Grand Canyon’s Forbidden Zone and the Secrets That Have Haunted It for a Century

Whispers about a “forbidden zone” in the Grand Canyon continue, but real closures protect sacred land, caves, and historic ...
Yahoo

Scientists delve into Hells Canyon cave to solve mystery of America's deepest gorge

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 ...
Earth.com

Giant meteorite may have caused a colossal landslide in the Grand Canyon 56,000 years ago

A new study reveals that the impact of the Meteor crater may have caused a landslide that flooded the Grand Canyon 56,000 ...