I believe its called the source.
I think it may be called The Source
It is the river's mouth
A river starts at it's source and ends at it's mouth.
The point where the river starts off is called the
Amazon River
the place where a river starts
A place that starts with w is Washington DC! A place that starts with Z is Zimbabwe! And A place that starts with W and Z is Wzary
The River Ribble
at the mouth^^^Incorrect ! A river starts at its source - usually at a high place, such as a hill or mountain. It ends at the river mouth - which is where it meets the sea.
An estuary
The headwaters.
It starts at a place called under the bridge in westbromwich it ends in south wales in between the mountains