road curve below the perekop rock in mullerthal, luxembourg

road tree infrastructure plant lane trail forest green highway transport waterway nature flower woodland leaf jungle bridge river valley perekop rock mullerthal luxembourg rural region east canton echternach spectacular geological formation cliffs walk area located sauertal berdorf waldbillig hiking trails build offer ways explore curve luxemburg lux grand duchy europe waldbalaquo lleg kanton mafrac14 llerthal cliff erosion edge stone crumbling control eroded root plants earth landslide country scene countryside season seasonal driving street direction marking roads