- deepest
- widest
- Largest volume of water
- Slowest speed
- Very gentle gradient
The river channel is deep and wide. It has the largest volume of water and load because the river brings these down from the upper courses. It flows over land with very gentle gradient
River
Valley- Broad
- Flat
- Bounded by bluffs
The type of the erosion that takes places here is lateral erosion. Vertical erosion has almost stopped. Its main activity is transporting and deposition.