Vales or Glens
Vales or Glens
Deep valleys with cliffs or steep slopes along their sides are called gorges. Gorges are typically formed by the erosion of water flowing through the valley.
They are canyons
Mesas and canyons are alike in that they are both landforms resulting from erosion by water and wind. Mesas are elevated flat-topped areas with steep sides, while canyons are deep, narrow valleys with steep sides. Both mesas and canyons are typically found in arid or semi-arid regions.
The different types of river valleys include V-shaped valleys, U-shaped valleys, and canyon valleys. V-shaped valleys are typically narrow with steep sides, carved by erosion from a river. U-shaped valleys are wider and have more gradual slopes, formed by glaciers. Canyon valleys are deep and narrow with steep sides, often formed by a combination of tectonic activity and erosion.
a deep, steep-sided, narrow river valley
Deep V-shaped valleys are commonly known as river valleys and are formed by the erosive action of flowing water over time. These valleys typically have steep sides and a narrow bottom, shaped by the continuous erosion of the river cutting through the land.
A steep valley is called a canyon or ravine. Valleys can have different shapes because of the shape of the land and what is eroding it. The canyons usually have steep sides. Other words that can refer to a steep valley include gully, hollow and gorge.
Upland river valleys have steep sides because of the erosive power of the river cutting into the surrounding land over time. The river erodes the sides of the valley, creating the steep slopes. Additionally, the geology and underlying rock composition in upland areas can also influence the formation of steep-sided valleys.
Canyon
A glacial valley is formed by the movement of glaciers, which carve out deep U-shaped valleys with steep sides and flat bottoms. A river valley, on the other hand, is formed by the erosion of flowing water over time, resulting in V-shaped valleys with narrower bottoms and less steep sides. Glacial valleys generally have a more pronounced U-shape and are wider compared to river valleys.
Land features formed from ice erosion include cirques, u-shaped valleys, and fjords. Cirques are bowl-shaped depressions at the head of a glacier, u-shaped valleys are deep valleys with steep sides carved out by glaciers, and fjords are long, narrow inlets with steep cliffs created by glaciers flowing into the sea.