50.920504 7.764591 50.921392 7.765163 50.920504 7.764591 50.921392 7.765163 50.920504 7.765156 50.920511 7.765163 50.920528 7.765152 50.920587 7.765117 50.920726 7.765028 50.920971 7.764958 50.921098 7.764941 50.921200 7.764838 50.921307 7.764727 50.921392 7.764591 156990 Entwicklung Quellen und Quellbäche Biotopkataster Flächen