#20 : Grand Canyon, USA

The Colorado River Gorge in Arizona in the USA by the Colorado Plateau. Lee's Ferry is considered to be the start of the canyon (a small station with a motel and a boat dock about 12 km from Page), while the canyon end lies in the Grand Walsh Cliff around 20 km from the beginning of Lake Mead. The distance between these points measured by the Colorado River current is 446 km. The deepest part of the Grand Canyon is Granite Gorge, where the deepest place lies below the edge at 1857 m (6093 ft). This area is the national park - Grand Canyon National Park. Interestingly, until recently the Grand Canyon was considered the largest gorge in the world. Until recently, in mid-2013, researchers from the University of Bristol, based on NASA data, discovered a huge canyon under Greenland ice cream with a length of at least 750 kilometers.
photo source: facebook.com/Tajemnicze-Miejsca-na-Ziemi-737367156301604/
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