Three Gorges assisted Yu the Great in controling the waters and guiding boatmen. The Xiling Gorge comprises a series of famous gorges, including Military Book and Sword Gorge, Yellow Cow Gorge, and Lantern's Shadow Gorge. In 1919, after Sun Yat-sen had put forward the concept in the Plan for Industrial Development of his (), experts investigated damming the Three Gorges, but it was not until 1994 that the Three Gorges project officially started. In 1944, the Nationalist government recruited John L. Savage, the Chief Engineer of the United States Bureau of Reclamation, who came to China and made a 10-day investigation of
Ziz Gorges caravan trading route between settlements of the northern Sahara. In the 1st century, the Roman general Gaius Suetonius Paulinus crossed through them while leading troops across the Atlas Mountains. Ziz Gorges The Ziz Gorges are a series of gorges in Morocco on the upper course of the Ziz River. They are defined by two gates at the southern and northern ends. At the southern end is the Hassan Addakil dam and lake. Nearby is the Tunnel de Légionnaire built by French colonial troops in the 1930s in order to create a passageway to the Ziz Gorge. The gorge was formed