The Lebak Kosala site, nestled within the scenic landscapes of Lebak Regency, stands as a remarkable testament to Indonesia's ancient megalithic heritage. Situated amidst the Endut mountains within the Mount Halimun-Salak National Park area, specifically in the Village of Lebakgedong, Cipanas, Lebak, this site comprises five terraced steps aligned in an east-west direction, offering a breathtaking view of Mount Kasola's peak. Adjacent to the site lies a pool where ritual purification takes place before ceremonial activities commence. Of particular interest are the pathways constructed from flat stones, some fashioned into stairs, seamlessly connecting each step. Notable features include the enigmatic "Pelor Stone," revered by locals for its bullet-like roundness. Additionally, fragments of both local and foreign ceramics have been unearthed, showcasing intricate designs crafted through various techniques. Among the discoveries stands a 50 cm high statue dubbed the "Kosala Arc," adding to the mystique of this ancient site and inviting visitors to delve into its rich history and cultural significance.