the Headwaters
The place where the two rivers join to flow together is called a confluence.
They are dried out rivers most scientists think. so you can call them rivers yes
I believe there is a trade magazine called "Call Center Magazine." Perhaps that is a good place to start.
When the place gets hot ,dry, and dusty. Cracks start to appear in the soil. The water levels of lakes, streams, and rivers start to go down.
The Indus and the Ganges Rivers
itaska
The Amazon
The watershed.
oceans
A place where two rivers meet is called a confluence.
Exotic rivers
The major rivers that start in the Kunlun Mountains are the Yangtze River and the Yellow River in China. These two rivers are vital for irrigation, transportation, and agriculture in the region.