The canyon is mainly formed due to the rapid uplift of the surface and the severe downcutting of the river due to the tectonic movement.

In mountainous areas, due to the steep slope of the surface, the river flow is turbulent, and a lot of sand and soil will be carried away by the water flow. This is the effect of erosion on the bottom of the river.

As the bottom of the river gets deeper and deeper, the rock walls on both sides present almost vertical cliffs, and the canyon is thus formed.

Here are some of the deepest canyons in the world.

In 1994, the Yarlung Zangbo Grand Canyon was recognized as the deepest canyon on earth, with a total length of 504.6 meters. The deepest part is 6009 meters.

The Yarlung Zangbo Grand Canyon has high mountains and deep valleys, turbulent water flow, and annual precipitation of 4500-10070 mm. This unique geographical advantage makes the Yarlung Zangbo Grand Canyon the place with the richest water resources in the world.

Capertee Gorge is the largest canyon in Australia. Known for its rugged terrain and towering sandstone cliffs. Here, you can enjoy many unique scenery, such as monsoon rainforest, rock country, high and low swamps, woodlands, rivers and so on. According to records, a prospector found 77 gems at the bottom of the canyon in 6 days.

People have been debating the depth of the Kali Gandaki Canyon. It is hard for you to imagine that it was an ocean in ancient times. The Kali Gandaki Gorge is surrounded by the Himalayas, but it is older than the Himalayas.

There is a mysterious Kali Gandaki River here, which is gray-black all year round due to glacial silt, symbolizing death.

Fish River Grand Canyon is located in Africa. It is not only the largest canyon in Africa, but also one of the largest canyons in the world. There are steep cliffs on both sides of the canyon, and a deep long river below. It attracts people from all over the world to come here to appreciate it every year.

Colca Canyon is a grand canyon in the Andes in Peru. The total length of the canyon is about 90 kilometers, surrounded by the Andes plateau and snow-capped mountains, the scenery is very beautiful. There are also many wild animals living in the surrounding nature reserves.

The Great Rift Valley is the largest fault zone on the world continent. From satellite photos, the Great Rift Valley in East Africa looks like a huge scar. The Great Rift Valley in East Africa is known as the "Scar on the Earth".

When you take a plane across the vast Indian Ocean and enter the equator of the East African continent, look down from the window, and you will find a huge "knife mark" on the ground in front of you. This is the famous East African Rift Valley.

Cotahuaxi Canyon is located near Arequipa, with a depth of about 3535 meters, which is twice as deep as the Grand Canyon of Colorado in the United States. The Cotahuaxi Canyon was formed by the long-term erosion of the mountains by the river. The canyon is deep and long.