50.121172 7.475604 50.123486 7.477840 50.121172 7.475604 50.123486 7.477840 50.123486 7.477840 50.123175 7.477376 50.122597 7.476891 50.122170 7.476253 50.121764 7.475733 50.121172 7.475604 186052 Entwicklung Quellen und Quellbäche Biotopkataster Linien