The structure of a geological formation is determined by several factors that can be divided into two main groups: internal factors and external factors. Internal factors include the composition of rocks, type of sediment, thickness and arrangement of layers, while external factors include erosion, re-deposition (repeating deposition), movement of geological plates and climate changes. These factors interact and contribute to the unique structure of each formation. Different compositions of rocks resist weathering, erosion and other geological processes differently. The type of sediment determines the physical and chemical properties of the formations and in turn affects the processes of deposition, weathering and erosion. The type of sediments forming the formation (such as sand, clay, limestone) affects its structural characteristics, such as density, shell and particle size. Erosion can lead to deformation, reduction of height and even complete removal of formations. In this paper, parameters affecting  the structure of a geological formation will be discussed.