Qiantang River

钱塘江
Qiantang River and the bridge beneath Liuhe Pagoda
Etymology钱塘县附近的河流
Location
Country China
ProvinceZhejiang, Anhui
Physical characteristics
Source兰江
 • locationQingzhidaijian (青芝埭尖), Xiuning, Anhui
 • elevation810 m (2,660 ft)
2nd sourceXin'an River
 • locationLiugujian (六股尖), Xiuning, Anhui
 • elevation1,350 m (4,430 ft)
MouthHangzhou Bay
Basin size55,558 km2 (21,451 sq mi)
Basin features
CitiesHangzhou
Tributaries 
 • leftJiu Stream
 • rightCao'e River, Puyang River
Qiantang River
Simplified Chinese钱塘
Traditional Chinese錢塘
PostalTsientang River
Literal meaningRiver of King Qian's Dyke
Transcriptions
Standard Mandarin
Hanyu PinyinQiántáng Jiāng
Wade–GilesCh'ien-t'ang Chiang
IPA[tɕʰjɛ̌n.tʰǎŋ tɕjáŋ]
Wu
RomanizationChi-dhon kaon

The Qiantang River, formerly known as the Hangchow River or Tsientang River, is a river in East China. An important commercial artery, it runs for 459 kilometers (285 mi) through Zhejiang, passing through the provincial capital Hangzhou before flowing into the East China Sea via Hangzhou Bay south of Shanghai. Its original name, the "Zhe River" or "Zhe Jiang", is the origin of the name of Zhejiang province. The river is also known, along with Hangzhou Bay, for having what is called by locals as the "Silver Dragon", the world's largest tidal bore, a phenomenon where the leading edge of the incoming tide forms a wave (or waves) that can rise to a height of 9 meters (30 ft) and travels up the river or narrow bay at top speeds of 40 km/h (25 mph; 11 m/s) against the direction of the river or bay's current, and can be seen from miles away.