What is a common features of youthful river channels?

Youthful river channels commonly possess a steep channel gradient that causes swift and turbulent flow with increased erosive potential. Steep gradient often leads to incised channels and headward erosion as the river actively deepens its path and extends towards higher elevations due to its downward cutting force. River channel may have unstable beds and banks as rapid erosion outpaces vegetation growth or bank reinforcement. These features characterize high-energy environments commonly found in upper course of river system particularly in mountainous or hilly terrain.