Coal mine warning sign. The sign warns of the danger of an orange cloud containing nitrogen dioxide gas from blasting operations at a surface coal mine. Photographed in Gillette,Wyoming,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / West, Jim |
Bildgröße: | 4296 px × 2864 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |