One is a U-shaped canyon formed by glaciers, whereas the other, deeper canyon is a narrow V-shaped canyon carved by the river.
(One; is; a U-shaped canyon formed by glaciers) (a U-shaped canyon; formed; by glaciers) (deeper canyon; is; a narrow V-shaped canyon carved by the river) (a narrow V-shaped canyon; carved; by the river)
One a U-shaped canyon deeper canyon a narrow V-shaped canyon
is formed is carved
a U-shaped canyon formed by glaciers
by glaciers
a narrow V-shaped canyon carved by the river
by the river