A deep valley characterized by step-like slope is known as

A canyon is a deep valley specifically characterized by steep, step-like side slopes [1]. While both gorges and canyons are deep erosional features, they differ in their cross-sectional profiles. A gorge typically has very steep to straight sides and is almost equal in width at its top and bottom [1][3]. In contrast, a canyon is wider at its top than at its bottom and is often formed in horizontally bedded sedimentary rocks where differential erosion creates the characteristic stepped appearance [1][3]. U-shaped valleys are glacial features with broad floors and smooth sides [4], and blind valleys are associated with karst topography. Canyons are common in arid regions where vertical downcutting by rivers is more dominant than lateral erosion, as seen in the Grand Canyon.

Sources

1. [1] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 6: Landforms and their Evolution > Valleys > p. 48
2. [3] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 6: Landforms and their Evolution > Glacial Valleys/Troughs > p. 55
3. [4] https://www.nps.gov/grca/learn/nature/grca-geology.htm