Vast numbers of Chinese workers were employed in the construction of the US transcontinental railroad through the Sierra Nevada in the 19th century. A snowshed, visible on the right, was used employed to avoid avalanches blocking the line. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Parker, David |
Bildgröße: | 5196 px × 4903 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |