Small-scale rural sewage treatment plant near Threlkeld, Cumbria, UK, in the Lake District National Park. The foothills of Blencathra mountain can be seen in the background. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Williamson, Mark |
Bildgröße: | 5128 px × 3408 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |