: Vertical erosion (downcutting) slows down while lateral (sideways) erosion becomes dominant, causing narrow V-shaped valleys to broaden into U-shaped ones.
"Mature land" typically refers to the , characterized by maximum topographical diversity and the development of broad river valleys. mature land
: A well-developed network of tributary streams efficiently drains the entire land mass. Contextual Variations : Vertical erosion (downcutting) slows down while lateral
In geomorphology, a landscape is considered mature when it reaches its highest level of dissection by streams: mature land
: Large, flat floodplains begin to form as rivers lose velocity and start to meander.
The concept is most famously defined in the , where landforms evolve from "youth" to "maturity" and finally "old age". Key Characteristics of Mature Land