50.642838 7.440754 50.643004 7.441114 50.642838 7.440754 50.643004 7.441114 50.643004 7.440754 50.643002 7.440756 50.642984 7.440851 50.642966 7.440944 50.642838 7.441114 167575 Entwicklung Quellen und Quellbäche Biotopkataster Flächen