Dadu River Canyon National Geopark

Dadu River Gorge is located in Jinkouhe District, Leshan City, Sichuan Province, Hanyuan County, Ya'an City and Ganluo County, Liangshan Yi Autonomous Prefecture, bordering the area of about 404 square kilometers. It is a typical river erosion Valley landform, about 26 kilometers long, 70-150 meters wide, less than 50 meters in some parts, with a drop of 1000-1500 meters, and a maximum Valley depth of 2600 meters, which is twice as deep as the Three Gorges of the Yangtze River and 860 meters deeper than the Grand Canyon of Colorado in the United States.

Sichuan Dadu River Canyon National Geopark

synonym

Dadu River Canyon National Geopark generally refers to Sichuan Dadu River Canyon National Geopark

Sichuan Dadu River Canyon National Geopark is located in the border of Jinkouhe District of Leshan City, Hanyuan County of Ya'an City and Ganluo County of Liangshan Yi Autonomous Prefecture, with a total area of about 404 square kilometers. The geological park is characterized by the basalt geological landforms of Daduhe Grand Canyon and dawashan. Due to the unstable geological structure of the area, it is easy to cause the rock block on the steep rock to collapse and fall, which poses a hidden danger to the safety of the main artery of Chengdu Kunming railway. Therefore, the railway designer built a rare high slope prevention column in China to support and stabilize the rock slope and protect the railway safety, thus forming a beautiful landscape in the park.

In December 2001, it was officially approved as the second batch of national geoparks by the National Geological Heritage (Geopark) review committee, and named "Sichuan Dadu River Canyon National Geopark".

brief introduction

Sichuan Dadu River Canyon National Geopark

Key words: Geopark

Sichuan Dadu River Canyon National Geopark is located in the border of Jinkouhe District of Leshan City, Hanyuan County of Ya'an City and Ganluo County of Liangshan Yi Autonomous Prefecture, with a total area of about 404 square kilometers.

The geological park is characterized by the basalt geological landforms of Daduhe Grand Canyon and dawashan.

ecological environment

The Grand Canyon of Dadu River is magnificent, magnificent, precipitous and mysterious, with walls standing on both sides in thousands of shapes, picturesque and carved. It also cuts out the pre Sinian (540 million years ago) Ebian group to Permian Emeishan basalt (ca

The perfect geological section with a thickness of several kilometers records the geological evolution history of more than one billion years.

Emeishan basalt constitutes the top of the Pingdingshan mountain, with a platform area of about 1.6km2. The surrounding dangerous rocks are jagged and the cliffs are hanging high, with an elevation difference of 800-1000m. From a distance, it looks like a castle in the air, or a tile on the mountains, echoing Emeishan and Wawu mountain, forming a tripartite confrontation. The scenery is fantastic and extremely spectacular.

Professor Fan Xiao has been to Wawu mountain and the Grand Canyon for many times to conduct field surveys. He and members of the field survey team jointly found that under the action of Quaternary ancient glaciers, Wawu mountain and the Grand Canyon formed complete glacial U-shaped valleys, Jiaofeng, icebergs, ice eroded lakes, ice objects and other late Pleistocene ancient glacial landforms on the high mountains and mountain platforms in the Grand Canyon area.

Other geological relics include: dingmugou section from Late Proterozoic to Permian, shiquanzi crystal deposit and many hydrogeological landscapes with special significance.

When the Dadu River enters the gorge, it becomes a roaring dragon. People are in the middle of it. The train overhead rumbles past, and the river under their feet thunders. The sound of up and down makes the whole gorge vibrate.

The well preserved and fully exposed rock strata of different geological ages on both sides of the canyon are arranged in order from the bottom of the valley to the top. There are abundant paleontological fossils in the rocks, which are like a complete and vivid "geological textbook".

It records the great changes and biological evolution of the earth in this region.

Geographical features

Dadu River Grand Canyon is located in wusihe town and huangmu town of Hanyuan County. It was discovered in March 2001 that it starts from wusihe town in Hanyuan County in the West and ends at Baixiong gorge in Yongli Yi nationality township in the East.

The gorge is 17 kilometers wide from east to west and 26 kilometers long from north to south. The width of the gorge is less than 200 meters, and the depth of the gorge is more than 2000 meters,

Jinkou Grand Canyon is located in the east edge of Hengduan Mountains where the crust rises strongly. The bedrock of the canyon is mainly hard dolomitic limestone. Jinkou gorge has become the largest and most typical ZhangGu and Aigu in China, with vertical slope and deep valley

The narrow and valley bottom are almost occupied by the channel, and the beach is not developed. The Grand Canyon has a total length of 26 kilometers. The largest canyon is 2690 meters deep and the narrowest one is only 70 meters wide. The Chengdu Kunming railway passes through the canyon and is world-famous.

On both sides of the Strait, the cliffs are cut with axes and knives, the peaks are in love with the obstacles, and the strange peaks and stones emerge in endlessly, like sculptures and paintings.

Looking from afar, the Grand Canyon, like a huge ground fissure, meanders away in the distance. It is majestic and magnificent, and cuts out a perfect geological section several kilometers thick from the Presinian (540 million years ago) Ebian group to the Permian Emeishan basalt (300 million years ago), recording the geological evolution history of more than one billion years.

Dawashan (Pingdingshan), which is covered by Emeishan basalt, has a platform area of about 1.6 square kilometers. It is surrounded by craggy rocks and high cliffs, with an elevation difference of 800-1000 meters.

Dadu River Canyon is majestic, precipitous and illustrious. It integrates majestic, strange, dangerous, quiet and precipitous. It is the best base for geological landscape, eco-tourism, scientific investigation, rock climbing and rafting, and exploration. Its scale is comparable to that of Yangtze River and Colorado Grand Canyon.

It is a typical karst landscape with thousands of cliffs on both sides. There are "Moon Bay", "lover's Valley" and "Wo Niu Tan" in the canyon. It also contains colorful crystals and stones, and forms "three wonders of the canyon" with all kinds of dazzling flowers.

The evaluation of the Grand Canyon by Dr. hauger panai, an ecologist from the German Academy of Sciences: the Grand Canyon of Dadu River is very similar to the Grand Canyon of corodo in the United States.

natural resources

The natural and cultural landscape is extremely rich

In addition to the rich and colorful geological relics, the Grand Canyon is also rich in other natural and cultural landscapes, such as the lush primeval forest, the waterfalls hidden in the canyon, and the cliffs on both sides, which record the mysterious evolution of the earth's crust for more than 1 billion years, just like a "geological book".

In the valley, there are also deep gullies rarely found, such as "Baoshui River", "luooamo" (Chinese meaning: Changming River) "and" Baixiong ".

The sound of birds accompanies the stream, and the pebbles overlap the green peaks. Not only the "Moon Bay", "lover's Valley", "Sun Valley", "Dragon Waterfall" and "Paradise waterfall" in the valley are amazing, but also there are beautiful sceneries of orchids in the valley such as "Baoshui River", especially the rare orchid resources, among which one orchid is worth 130000 yuan.

The terrain and soil of Dadu River Grand Canyon are vertically distributed, and the cliff of the deep valley forms a more unique three-dimensional climate. The climate has the characteristics of "ten miles in different days", which also contributes to the biodiversity. There are more than 3400 kinds of wild plants and precious Chinese medicinal materials, such as Davidia involucrata, Lianxiang, Ginkgo biloba, Cordyceps sinensis, Niuxi, etc., in the deep valley. There are 191 genera and 734 families of trees and shrubs alone.

There are also rare animals such as red panda and golden pheasant, just like a perfectly preserved "natural ecological museum".

Looamo Valley

The depth of luooamo deep valley is more than 8000 meters, and the valley is more than 1000 meters deep

It is 6 meters in length, and the widest valley bottom is less than 20 meters. Many sections are also made of shrubs and trees to form a natural "Overpass". Because of the narrow, the abrupt rock on the cliff collapses and forms a natural "Overpass".

There are many rare animals perched on the cliffs of the valley, including large protected animals such as monkey, rock sheep, rock antelope, black bear and golden pheasant. There are many rare plants growing on the narrow platform of the valley, and colorful crystal stones are also abundant in shiguanuan village.

Yi villagers

Yi villagers, who have lived in the valley for generations, rely on the vertical ladder to connect with the outside world, so many scenic spots in the valley are still unknown.

The unique geographical environment has created a unique national atmosphere, especially the Yi people in Erping village. They are good at expressing their thoughts with songs. They have very suitable songs for cutting firewood in the mountains, working in the fields, grinding at home, and relaxing. Their songs are beautiful, their clothes are special, and they have the characteristics of Mongolian costumes and strong Yi charm.

Highlights

1. Take a section of old Jinwu highway and overlook the canyon.

2. Walk into the depth of laochanggou, where the beauty of the cliff lies.

3. The 6 km long guancunba tunnel.

4. There are some beautiful beaches beside Dadu River.

5. The Cliff Road beside the yixiantian bridge is also unique, which is the situation of "stepping on sand and head on Boulder" (you can see the road on the cliff when you look up from the road under the yixiantian bridge).

6. The railway bridge on the Wusi river is also quite spectacular.

Surrounding scenic spots

·Gaoyi palace in Ya'an

·Ya'an Jiajin mountain

·Ya'an Zhangjiashan Park

·Baizhang Lake in Ya'an

·Mengshan, Ya'an

·Yaan lingjiu mountain Daxuefeng

·Ya'an azalea mountain

·Sichuan Dadu River Canyon National Geopark

·Ya'an Fengtong Village

·Longcanggou, Ya'an

·Zhougong Mountain National Forest in Ya'an

Chinese PinYin : Da Du He Xia Gu Guo Jia Di Zhi Gong Yuan