The Yellow River is a big river in the north of China, with a total length of about 5,464 kilometers and a drainage area of about 752,443 square kilometers. One of the longest rivers in the world, the second longest river in China.
2. The longest underground river: Longqiao Underground River.
Longqiao Underground River is the longest underground river in the world, located between Enshi, Hubei, China and Fengjie, Chongqing, with a total length of 50 kilometers.
Longqiao Underground River dives underground from Longqiao Township at the southern end of fengjie county, Chongqing, and its entrance belongs to the north slope of the watershed. According to common sense, groundwater and surface water should flow to the tiankeng fissure in the north and the Yangtze River, but the Longqiao underground river stubbornly crosses the main vein of the 2000-meter-high watershed to the south and flows into the Mufu Grand Canyon in Banqiao, forming the Yunlong River, a tributary of the Qingjiang River.
3. The largest and deepest lake: Lake Baikal.
Lake Baikal, located in southern eastern Siberia, Russia, in Buryatia and Irkutsk, has a total volume of 5 1 29' ~ 55 46' north latitude and 0/03 41'~109 57' east longitude.
The lake is 636 kilometers long, with an average width of 48 kilometers and an area of 3 1.500 square kilometers. It is formed by stratum collapse, with an altitude of 455 meters and an average water depth of 730 meters.
4. The lowest basin: Turpan Basin.
Turpan basin is an intermountain basin on the southern slope of East Tianshan Mountain in Xinjiang, covering an area of 50 140 square kilometers, mainly in Turpan area. "Turpan" means "lowland" in Uighur.
5. The deepest and largest sinkhole: Daihe sinkhole in Tangbian Town.
Tangbian Town is located in the southwest of Pingtang County, bordering Kedu Town in the east and north, Tiji Township in Huishui County in the northwest, and Dongjia, Dongdang, Dadang, Shenjing and Limu Township in Luodian in the southwest. There are 4 14 natural villages with 6307 households.
Wanzi Village, where the town government is located, is 89 kilometers away from the county seat. The highway from Bianyang Town to Pingtang and Kedu in Luodian County passes through the town, and passes through Kedu and Kesan Highway to the north, reaching Pingtang County or Luodian County. To the south, the intersection of Bianyang and Luodian-Guiyang Highway can reach Huishui and Guiyang.
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