The Grand Canyon of the Yellowstone River is an example of a youthful stage stream The mature stage is characterized by a winding and bending (meandering) stream, with most erosion now being in a lateral or sideways manner, thus enlarging the width of the stream valley.
(The Grand Canyon of the Yellowstone River; is; an example of a youthful stage stream) (most erosion; being; in a lateral or sideways manner; T:now) (The mature stage; is characterized; by a winding and bending (meandering) stream)
The Grand Canyon of the Yellowstone River most erosion The mature stage
is being is characterized
an example of a youthful stage stream
in a lateral or sideways manner T:now
by a winding and bending (meandering) stream