Archaeological and geomorphological research into a hillfort in the Jasło Foothills (SE Poland): constraining the origin and age of the earthen ramparts

Archaeological and geomorphological research was carried out in the area of a presumed hillfort in Wietrzno-Wola Albinowska, Krosno district, to determine the origin and nature of the earthen ramparts visible at the surface and to describe the changes they have undergone over the past centuries. The oval fortifications have dimensions of 420 x 460 m and an area of >16 ha. The NW section of the hillfort was examined using two trial excavations. Relics of the fortification take the form of a partially preserved earthen rampart, damaged by subsequent geomorphological processes and agricultural activities. The characteristics of the sediments building the earthen rampart show that these are of anthropogenic origin. The hillfort in Wietrzno, due to its form, size and settlement context, can be associated with the Late Bronze Age to Early Iron Age interval.