The macro-landform in this terrain is featured by two-leveling mountain planes with elevations of 1,800-2,000 meters and 1,200-1,500 meters and deep-cut gorges. The three karst systems lie in the bank, interfluve and headstream of Wujiang River branches respectively; and they formed an interrelated integrity for its developing successively and distributing in sequence.

Wujiang River is one of big tributaries of Yangtze River, with a section of 79 kilometers long in Wulong and an incised depth of one kilometer. It influenced intensely the development of its branches such as Furong Jiang, Yangshui He, Muzong He geomorphic systems, for its continuous river incising and vadose zone increasing since the tertiary, and it is the main dynamic genesis of Wulong Karst.

The Wulong Karst records vividly the unique characters of gorge, cave and tiankeng karst development and evolvement under the intermittence tectonic uplifting conditions in Three Gorges area since Cenozoic era for 65Ma, representing major stages of earth evolutionary history.

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