Where a river drops down into a valley is called a "waterfall." This occurs when the river flows over a steep drop or cliff, creating a dramatic descent. Waterfalls can vary in height and volume, and they are often characterized by the stunning visual and auditory experience of cascading water. Additionally, the area around waterfalls can be rich in biodiversity and serve as important ecological zones.
It drops the material. This is called deposition :)
Rhône River valley
it is the valley that the St Lawrance river flows down.
the river running through rock wear it down into deep valley with the steep sides what is it called
The Montmorency falls is at the mouth of the Montmorency river, which drops down into the Saint-Lawrence River.
the river current slows down it drops of rocks and gets some dissolved materal it carries on down the river two a shore
Down in the valley, a river tends to slow down and meander.
Please rephrase - the question is unclear.
To get to the river, we had to hike down the mountain and into the valley.
I think its a river!
A mountain stream, or a river flowing lower down in the valley.
Because water slows down and sediment drops to the bottom