upper course: waterfall called High Force which is 29m high. (vertical erosion cut through soft rock, leaving an overhang of hard rock which eventually collapsed)
Middle course: meanders near Yarm
lower course: depositional landforms such as levees at Croft-on-Tees formed as the river flooded, depositing sediment on the banks which has built up over time.
Therefore, the upper course has erosional landforms whereas the lower course has depositional landforms