Abstarct: The study area is located in the southern and southeast of the city of Arak, in the Sanandaj-Sirjan zone. Stratigraphic studies in this region confirm the existence of Mesozoic and Cenozoic rock units with the structural Northwest-Southeast trend. This area is formed by large-scale anticline and syncline. However, due to the masses of lime within the region, the influence of igneous masses, as well as the effects of faults and erosion, these anticlines and syntaxes are not completely determined at the Earth's surface Five fold full names, Fold Mount Shams Abad, Fold Zalo, Fold Verche, Fold Verche 2, Fold khaneh Neyaz the first time introduced in this study. The number of 11 faults in this study has been investigated. These faults include the Kuh-e-Homa fault, Kuh-e-Shahneshin fault, Nazm Abad fault, Kuhe-Zard Trust, and Aragón fault with Northwest-Southeastern Trust, which corresponds to the Zagros Trust pattern. Mountain faults, Chahak faults, F1 fault and F2 faults, which are first introduced in this study, have a North-Southwest direction and faults with East-West faults, the fault of the Arkwin that the left fault is of a type of erosion, and the Noraean fault That is the fault is normal. Morphological symptoms have also been used to better identify major faults. Part of the fractures within the region are tensile and another part of these fractures is the shear fracture along the faults.