50.901789 7.779476 50.903984 7.780331 50.901789 7.779476 50.903984 7.780331 50.901789 7.780331 50.901888 7.780249 50.901989 7.780174 50.902204 7.780081 50.902469 7.780013 50.902910 7.779984 50.903368 7.779778 50.903682 7.779678 50.903984 7.779476 157528 Entwicklung Quellen und Quellbäche Biotopkataster Flächen