50.522952 7.597687 50.523660 7.597822 50.522952 7.597687 50.523660 7.597822 50.523660 7.597719 50.523459 7.597714 50.523282 7.597687 50.523241 7.597709 50.523198 7.597745 50.523103 7.597753 50.522987 7.597761 50.522960 7.597799 50.522955 7.597813 50.522952 7.597822 167655 Entwicklung Quellen und Quellbäche Biotopkataster Flächen