A watershed is a area of water that flows from high emptying into a larger body of water
A source is a beginning point of a body of water .
An area formed from the deposition of sediments at the mouth of a river .
The Great Basin is a watershed where the water does not flow to the ocean .
The beginning of a river is called headwaters some come from underground streams but most come from the mountains snow
A down river is between headwaters and floodplains .
A stream or river which flows into a mainstream .
A confluence is a place where two rivers meet .
A floodplain is the relatively flat land adjacent to the river to channel that is underwater when the river floods .