hellental, germany - 07 30 2020: water below the damwall of oleftalperre, tosbecken

waterway bridge river landmark water reflection canal tree architecture estate garden park reservoir pond plant transport arch hellental germany 2020: dam wall oleftalperre overflow channel ares oleftalsperre one big freshwater lakes west eifel close border belgium british called olef huge serves drinking supply flood prevention power included damwall tosbecken belgium dam wall