However, data reinterpretation reveals it is in an unnamed canyon at 76.052°S, 118.378°E in Wilkes Land," the press release said. "The ice here is 4,757 m thick, or more than 15 times the height ...

The gouge is about 50% longer than Arizona’s 277-mile Grand Canyon, but not as deep – ranging from 650 feet to about 2,600 feet (200 to 800 meters), Bamber said.

The map, called Bedmap3, gives a clear view of the towering mountains and deep canyons hidden by the ice sheets. It was compiled using more than 60 years of data from planes, satellites, ships and ...

Bedmap3 is the most fine-grain map to date of the landscape beneath Antarctica's ice. Scientists created it using more than 60 years' worth of data from satellites, ships and dog-drawn sleds.

The canyon system, located in the difficult-to-map region of Princess Elizabeth Land in East Antarctica, vastly outstrips the Grand Canyon, which measures 446 kilometres (277 miles) in length.

Significantly, the map revealed icy ridges that help to naturally stabilize ice flow across and around the Transantarctic Mountains, some of the oldest and most expansive mountains in Antarctica.

Bedmap3 is the newest map showing what Antarctica will look like without ice. British Antarctic Survey. Scientists used data from planes, satellites, ships, and dog sleds to create the map and ...

The gouge is about 50% longer than Arizona’s 277-mile Grand Canyon, but not as deep – ranging from 650 feet to about 2,600 feet (200 to 800 meters), Bamber said.

(CNN) — British and American scientists watching Greenland’s massive ice sheet have found what appears to be a 460-mile “megacanyon” far beneath the frozen surface of the world’s largest ...