Known as the mother river by all the Chinese people, the 5,464-kilometer (about 3,395 miles) Yellow River is the second longest river in China after the Yangtze River . The headwaters of this mighty river lie in Kunlun Mountains in northwestern Qinghai Province. It runs through nine provinces and autonomous regions on its way to the Bohai Sea. It is not exaggerating to say that Yellow River is a melting port, because there are more than 30 branches and countless streams feeding it through its course. The vigorous upper reaches of the Yellow River starts in Qinghai Province to Hekouzhen in Inner Mongolia.