The source of a river is where it begins, the mouth of a river is where it enters the sea.
the river source is where the water bubbles up from under the ground and creates a river.
The river's course is its route; where it goes.
if you mean River Thames, the source is Thames Head in Gloucestershire
I think you mean the source of a river, which is usually in the mountains.
I think you mean the source of a river, which is usually in the mountains.
Answer!-Usually the start of a river is called its source and the end of the river is called the mouth.
The source of a river is where the river starts.
In geography, "source" usually refers to the point where a river or stream begins, typically in the form of a spring or high-altitude area where water originates. It is significant because the characteristics of the source can influence the entire river system downstream.
Headwater is a term used to refer to the source of a river or stream's water supply. For example, some river's headwater source will be a lake, while other rivers may have an ocean feeding their water supply.
The source or beginning of a river is called the 'headwater'. The beginning of a river is known as the source.
The place where the river begins is called a source.