50.574375 7.453174 50.575834 7.453942 50.574375 7.453174 50.575834 7.453942 50.574375 7.453267 50.574386 7.453239 50.574539 7.453236 50.574735 7.453191 50.574903 7.453174 50.575046 7.453310 50.575250 7.453375 50.575448 7.453498 50.575620 7.453555 50.575739 7.453741 50.575834 7.453942 167487 Entwicklung Quellen und Quellbäche Biotopkataster Flächen