The Soapaga Fault is the eastern border of the Floresta Massif. Its deformation has been explained in several structural interpretations such as the Fault-Propagation, Fault-Bend, and Buckling folding kinematic models. However, none of these models explain clearly the deformation related to the Soapaga Fault such as the geometry, location, and thickness changes of the Betéitiva Syncline. First, we developed a structural analysis of the Soapaga Fault deformation that allowed us to distinguish between this fault and the Corrales Fault. To this, we developed a detailed description of the fault zones, the geomorphic evidence, the analysis of fault planes, and the type of deformation related to each fault. Second, we developed five balanced cross-sections to explain the evolution of the structural frame of the study area. To this, we used the trishear method to restore the Soapaga Fault deformation and explain the folding of the Betéitiva Syncline and its geometric features. We found the structural configuration evolves from north to south evidenced by the deformation of the faults. Also, we argue the Soapaga Fault has been misdescribed as the Corrales Fault by several authors because of the several structural differences we found for each fault. We propose the Soapaga Fault deformation is related to a trishear kinematic model, which allowed us to propose an effective structural model that best explains the structural evolution of the study area with lesser shortenings in comparison with past models. Last, we propose the Soapaga Fault deformation is a scope-dependent variable because in a local scope such as the Betéitiva Syncline the deformation is better explained by the trishear deformation but in a regional scope as the Floresta Anticlinorium the deformations is better explained by a fault-propagation model.