steep-sided bedrock valley with a narrow floor limited to the width of a stream channel
1) The deep fiord in the city, right downstairs from the courtyard, on the way to the Concert Hall; 2) The accesible part of Er'cana.
a ravine formed by a river in an area with little rainfall
a deep, narrow river valley with steep slopes
a narrow, steep-walled, and deep valley with or without a perennial stream at the bottom
a narrow valley or chasm with steep cliff walls
a vally that has steep sides
A Gorge, relatively narrow but of considerable size, bounded by steep slopes. It has often been formed by a river cutting through the soft rocks of an arid region; the scantiness of the rainfall prevents denudation of the canyon walls, and so maintains their steepness. The walls of a large canyon, however, rarely approach the vertical, and their irregularity of slope is due to inequalities in the hardness of the rock.
A canyon is a deep valley with very steep sides - often carved from the Earth by a river.
A deep narrow valley with high, steep sides.
A large but narrow gorge with steep sides. Thousands of years ago, the Grand Canyon was formed by the rushing water of the Colorado River.
a narrow valley with steep walls, formed by running water.
A narrow, steep valley, ravine or canyon, walled by cliffs, often carved over time by water. A Gully, Ravine or Gorge.
A long, deep, narrow, very steep-sided valley with high and precipitous walls in an area of high local relief.
a relatively narrow, deep depressionwith steep sides, the bottom of which generally has a continuous slope CNYU
A large deep valley; also the sub-marine counterpart.
Landform. A narrow chasm with steep sides cut by running water; a gorge or ravine.
a deep narrow valley with steep sides and often with a stream flowing through it
Steep-sided valley where depth is considerably greater than width. These features are the result of stream erosion.
A canyon (rarely cañon) or gorge is a deep valley between cliffs often carved from the Earth by a river. Most canyons originate by a process of long-time erosion from a plateau level. The cliffs form because harder rock strata that are resistant to erosion and weathering remain exposed on the valley walls.
