Gold mining. Miners using jets of water to loosen soil while placer mining for gold. Placer mining is where alluvial surface deposits are examined for minerals,as opposed to deep underground excavations. This gold mining operation is on the Boise River,in Twin Springs,Idaho,USA. This photograph was published circa 1901 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Library of Congress |
Bildgröße: | 4873 px × 3614 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |