Abstract Here. we present a remarkable methodology for unveiling subsurface structures with the potential to transform the exploration of mineral and ores resources. as well as the study of volcanic activity. By incorporating the Metaheuristic Bat algorithm (MBA) with the second horizontal gravity gradient (SHG) and employing variable window lengths. https://www.roneverhart.com/SAAB-9-3-I-98-02-Frontlykt-Hoyre/