dam wall backside of oleftalsperre, unusally d dam wall

bridge water reservoir waterway river reflection canal pond lake channel tree watercourse walkway infrastructure transport hellental germany 2020: dam backside oleftalsperre one big freshwater lakes west eifel close border belgium british called olef huge serves drinking supply flood prevention wall power plant included damwall unusally shaped volcanic mountains volcano rolling landscape vulkaneifel hills idyllic cone curve fresh blue eifel volcanic mountains volcano landscape vulkaneifel hills idyllic