50.156847 6.530863 50.158975 6.534295 50.156847 6.530863 50.158975 6.534295 50.156847 6.530863 50.157104 6.531116 50.157551 6.531663 50.157702 6.531997 50.157914 6.532579 50.158090 6.533095 50.158345 6.533535 50.158543 6.533911 50.158747 6.534065 50.158975 6.534295 170658 Entwicklung Quellen und Quellbäche Biotopkataster Flächen