In a mountain. A river drains a large area of the landscape so it has many sources, but the label "the source" is often placed on the part that is furthest inland. In the USA, there is a divide along the rocky mountains. On the west side, water will eventually flow to the Pacific Ocean, on the east side it will flow to the atlantic. So the source of say a river in California, could be no further east than the rocky mountains.
The source of all rivers and streams start as rain and snow. The rain and melting snow supply the rivers with runoff along with underground water.
maybe a lake or spring or glacier or mountains
Mountains
a source is a place where a river begins
a source is a place where a river begins
The source of a river
To find where the beginning of a river is.
mississipu delta
A source in geographic terms means where the river begins in mountains or lakes.
Answer!-Usually the start of a river is called its source and the end of the river is called the mouth.
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 of a river is where the river starts.
The source of river is known as its headwaters. In the example of the Mississippi River, its headwaters is Lake Itasca in Minnesota.
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.