Middle part of the Samica Valley in Western Poland, also known as the Bruszczewo microregion, witnessed several occupational phases during the prehistoric times. The archive geoarchaeological research documented presence of the lake in the past which had demise around 250 BCE and it was overgrown by peat deposits. During the LIDAR elevation model analysis a ridge in the central part of the basin was detected and hypothesized as an esker and a probable island during the lake presence. The geoarchaeological research was undertaken in order to verify the potential esker as an island on the lake during prehistoric periods. Aerial and satellite imagery combined with magnetometry, surface survey, drillings and comparison to earlier research provided data supporting the presence of dry episodes in the stratigraphy of the esker. This events might be attributed to the Early Bronze Age when the fortified settlement of Bruszczewo was functioning as well as during the Late Bronze Age and Early Iron Ages.

波兰西部 Samica 山谷的中部，也被称为 Bruszczewo 微区，在史前时期见证了几个职业阶段。档案地质考古研究记录了该湖过去的存在，该湖在公元前 250 年左右消亡，并且被泥炭沉积物覆盖。在 LIDAR 高程模型分析过程中，检测到盆地中部的山脊，并假设在湖泊存在期间为 esker 和可能的岛屿。进行了地质考古研究，以验证史前时期潜在的 esker 作为湖上的岛屿。航空和卫星图像结合磁力测量、地表测量、钻孔以及与早期研究的比较提供了支持 esker 地层学中存在干燥事件的数据。