Geomorphic unit

Image elements

Landform characteristics (Ground observation)

Area in sq. km.

Structural hills

Dark red tone coarse texture irregular shape

Linear to arcuate hills, dissected, granitic rocks mostly dendritic drainage, jointed ridges, average height 300 m. strong to very steep slopes


Denudational hills

Dull red tone, coarse texture irregular shape

Weathered granite, dendritic drainage, moderate to steep slopes, sparse vegetation


Residual hills

Dark grey tone, coarse texture shape and size-irregular and rounded

Erosional surfaces, isolated mounds which have undergone the process of denudation, Steep slopes, radial drainage act as runoff zones



Light red to red tone, moderate to fine texture

Gentle to moderate slopes, devoid of vegetation with various depths of weathering material, shallow sediment covers rocky and gravely surfaces, dendritic to sub-dendritic drainage, mostly vegetated or cultivated lying at foot hills


Shallow weathered pediplains

Green-bluish mixed tone moderate to fine texture

These units are characterized by the presence of relatively thicker weathered material. The thickness of the weathered material is (up to 5 m. These hydrogeomorphic units are developed mostly upon Mayurbhanj Granite


Intermontane valley

Green-bluish mixed tone moderate to fine texture

A linear or curvilinear depression valley within the hills, filled with colluvial deposits of IOG sediments



Dark red tone coarse texture irregular shape

Table land shaped hill with flat surface at the top with sloping sides