The final result is the reduction of the land surface to an approximate plain, called a peneplain, somewhere near sea level.
The whole land area at the time of flooding was virtually a peneplain.
A few other points in the vicinity failed to be reduced to the level of the peneplain.
At a stage shortly preceding the base-level stage the surface would be a peneplain.
This surface, or “peneplain,” was probably the result of denudation working away the beds almost to sea-level.
They appear to correspond with the level of the first peneplain recognized in the Devil's lake region.
A peneplain, therefore, is a surface which has been brought toward, but not to base-level.
This peneplain was later upraised into a plateau and its downward inclination towards the east increased.
Should you expect the velocity of an earthquake to be greater in a peneplain or in a river delta?
The bottoms of the broad depressions represent the Shenandoah peneplain, which is sharply trenched by the modern river channels.