50.431835 6.899149 50.432575 6.899721 50.431835 6.899149 50.432575 6.899721 50.432575 6.899721 50.432572 6.899719 50.432541 6.899704 50.432509 6.899686 50.432454 6.899661 50.432407 6.899642 50.432332 6.899610 50.432257 6.899576 50.432151 6.899480 50.431984 6.899294 50.431955 6.899262 50.431835 6.899149 159643 Entwicklung Quellen und Quellbäche Biotopkataster Flächen