The tumulus (an artificial hill) which covered the tomb and the dromos leading to its entrance was 19 meters in height and had a diameter of 75 meters. This was a major engineering project constructed in antiquity—after the erection of the tomb—with the laying of soil materials in successive layers with a thickness of about 0.80 meter. Within the context of restoring and protecting this listed burial ensemble (tomb, tumulus), the vertical slope that resulted from the removal of part of the mound (in the 1990s) was reinforced with stainless steel rods and geogrid fabric (NSRF Funding, implemented in 2015).