which river is known as the mother river of china

The river you're asking about is the Huang He, which everyone calls the Yellow River. It's basically the second longest river in China and gets that name because of the massive amount of silt it carries down from the Loess Plateau, giving the water a really distinct yellowish look. I've sailed near those regions a few times and it's honestly pretty wild to see how much sediment is actually moving through there.

It's often called the cradle of chinese civilization because so much history happened around its banks. But honestly, it's also known for being super unpredictable and flooding pretty often, which earned it the nickname "China's Sorrow" back in the day. It's definitely not the kind of river you'd want to underestimate when you're out on the water.