Research conducted using Airborne Laser Scanning methods in northern Poland allowed traces of a settlement from almost 2,000 years ago to be registered. The most valuable item found is a copper-alloy scallop shell-shaped plate which is still an unknown object in the cultural realities of the Roman Period in northern Poland. The results of pollen analysis of the material obtained during the cleaning of the found scallop shell-shaped plate indicate the dominance of herbaceous plants over the representation of trees in the vicinity of the archaeological site discussed. The advantage of synanthropic plants among herbaceous plants informs us about the open habitat communities formed as a result of human activity (fields, meadows, roads or ruderal areas).