资讯

NPR23 天
Hells Canyon, the deepest gorge in the U.S., is surprisingly young
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 ...
KBIA23 天
Hells Canyon, the deepest gorge in the U.S., is surprisingly young
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 ...
OPB23 天
Eastern Oregon’s Hells Canyon, the deepest gorge in the US, is surprisingly young
Hells Canyon, which is on the border between Oregon and Idaho, is almost 8,000 feet deep. That makes it far deeper than the famous Grand Canyon of Arizona, which reaches a depth of about 6,000 ...
Houston Public Media23 天
Hells Canyon, the deepest gorge in the U.S., is surprisingly young
Hells Canyon, the deepest river gorge in the United States, was carved just about 2.1 million years ago — making it much younger than the Grand Canyon. (Matthew Morriss) Hells Canyon ...
Northcountrypublicradio.org23 天
Hells Canyon, the deepest gorge in the U.S., is surprisingly young
Hells Canyon is the deepest river canyon in the United States. Now scientists have solved the mystery of when it formed. Hells Canyon, the deepest river gorge in the United States, likely got ...
来自MSN20 天
Hells Canyon, The Deepest River Gorge In The US, Was Created Incredibly Recently
Hells Canyon runs down the western flank of the US, snaking along the border of eastern Oregon and western Idaho before ending in Washington state. With a maximum depth of 2,436 meters (7,993 feet ...