The largest waterfall ever existed on Earth

The dry waterfall in America is the largest natural waterfall in the world with twice the height and three times the width of Niagara Falls today.

The Dry Falls (Dry Falls) , the largest waterfall in the world has dried up, is a horseshoe-shaped cliff in the canyon of eroded basalt, twice and three times as wide as Niagara Falls, according to BBC .Niagara Falls consists of three waterfalls on the US-Canada border, with an average height of 51m and a total width of more than 1.100m.Today the site is preserved in the dryland National Park area - Sun Lake.

The geologists discovered that the ice dam of Missoula Lake broke up to form a 90m high water stream moving at a speed of 100km / h.It washed away layers of rock on the way, forming massive canyons in just a week.

The Cascade Range divides the state of Washington, USA into two very different climates.In the west are some dense forests full of moss with snow mountains stretching from Canada to the state of Oregon.But on the east side of the Cascade Mountains is a little-known land, dominated by a vast semi-desert grassland environment.

About 15,000 years ago, a giant ice dam retained part of the ancient Lake Missoula in the area east of the Cascade range.Lake Missoula has half the size of Lake Michigan today.After the Ice Age ended, the broken ice dam released large amounts of water, eroding rock and soil, forming a 200-meter-deep basalt gorge, 96km long.

Missoula flood , the great flood caused by Lake Missoula's ice dam was broken, creating significant changes in the US geological structure.Signs of floodwaters influence as far as Portland City, 320km southwest of the Cascade range.

Sediments of washed away rock layers are now scattered throughout Washington and parts of Oregon.

About 100 years ago, people began to march into Thac Khoat gorge to establish some small towns and campsites around some of the freshwater lakes in the area.