50.255328 6.557886 50.255772 6.558789 50.255328 6.557886 50.255772 6.558789 50.255328 6.557886 50.255355 6.557901 50.255356 6.557899 50.255368 6.557943 50.255394 6.558037 50.255408 6.558091 50.255435 6.558188 50.255461 6.558283 50.255656 6.558608 50.255772 6.558789 175657 Entwicklung Quellen und Quellbäche Biotopkataster Flächen