The canyon carved by the river suggests a short erosional period.
There's evidence Mars once did have liquid water, carving great canyons we have yet to visit, alas.
Over many centuries, streams in the watershed have carved canyons through the Rhododendron formation to the level of the basalt.
Blue iron met pike wood and sheared it, continuing on to carve bloody canyons through leather armor.
It carves deep canyons down great mountains, through flat valleys, and past majestic and ancient redwood forests.
They dropped at last into a great U-shaped canyon carved by old glaciers, its rust-mottled walls plunging up so far that even the starship was hidden.
Everywhere around him garbage cans exploded, glass burst, walls of brick were being eroded as if bludgeoning rivers were carving canyons.
There were frequent gullies, boulder fields, and even canyons carved by fast-rushing mountain streams, but Victor breasted them all effortlessly.
The dry limestone plateau in the northeast is covered with oak trees and riddled with canyons carved by the serpentine River Lot.
The canyon was filled with boulders and rocks that had often fallen over a thousand feet into the canyon carved by the river through the Carson Range.