The begining is the "Source"
The ending is the "Mouth"
The start of a river is called the headwaters or source; the end of a river is called the mouth.When a river flows into another river, the 'mouth' of the river is called the confluence.
Rivers run from the source, or head, to the mouth of the river where it empties into a larger body of water, be it another larger river, or an ocean, or a sea.
Answer!-Usually the start of a river is called its source and the end of the river is called the mouth.
The source or beginning of a river is called the 'headwater'. The beginning of a river is known as the source.
Depends on which end you mean. The beginning of the river, the top end, is called the headwaters. The other end is called the mouth, or delta.
The starting point of a river is called a source. A smaller river that flows into a larger river is a tributary.
The beginning of a river is normally called the headwaters or source. The end of a river is the mouth.
The point where the river starts off is called the
Not strictly speaking. The beginning is called the SOURCE - often high up in mountains or similar The exit of the river to the sea (or end of the river) is the MOUTH
it is called the mouth of the river
The start of a river is known as it's source.
Lake Victoria.