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Dale – Low area between hills, often with a river running through it; Defile – Narrow pass or gorge between mountains or hills; Dell – Small secluded hollow; Doab, also known as Interfluve – Land between two converging, or confluent, rivers; Draw – Terrain feature formed by two parallel ridges or spurs with low ground in between
These classifications overlap with the geological definitions of "upland" and "lowland". In geology an "upland" is generally considered to be land that is at a higher elevation than the alluvial plain or stream terrace, which are considered to be "lowlands". The term "bottomland" refers to low-lying alluvial land near a river.
Also amphidrome and tidal node. A geographical location where there is little or no tide, i.e. where the tidal amplitude is zero or nearly zero because the height of sea level does not change appreciably over time (meaning there is no high tide or low tide), and around which a tidal crest circulates once per tidal period (approximately every 12 hours). Tidal amplitude increases, though not ...
A rift valley is a linear shaped lowland between several highlands or mountain ranges produced by the action of a geologic rift. Rifts are formed as a result of the pulling apart of the lithosphere due to extensional tectonics. The linear depression may subsequently be further deepened by the forces of erosion.
A valley is an elongated low area often running between hills or mountains and typically containing a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period.
The Low Countries as seen from NASA space satellite. The Low Countries (Dutch: de Lage Landen; French: les Pays-Bas), historically also known as the Netherlands (Dutch: de Nederlanden), is a coastal lowland region in Northwestern Europe forming the lower basin of the Rhine–Meuse–Scheldt delta and consisting today of the three modern "Benelux" countries: Belgium, Luxembourg, and the ...
Whittow describes a saddle as "low point or col on a ridge between two summits", [1] whilst the Oxford Dictionary of English implies that a col is the lowest point on the saddle. [2] Monkhouse describes a saddle as a "broad, flat col in a ridge between two mountain summits." [3]
Mountain pass – Route through a mountain range or over a ridge; Riparian zone – Interface between land and a river or stream; Salient (military) – Battlefield front breakthrough progressing into enemy territory; Transverse valley – Low-lying area deeply interrupting a mountain chain