Vanadium mining, 1940s. Buildings of the US Vanadium Corporation with a smelter stack at left. This factory and mine is near State Route 160, Durango, La Plata County, Colorado, USA. Vanadium is a transition metal obtained from its ores. Typical uses include vanadium-steel alloys. This photograph, dating from 1942, forms part of the Historic American Engineering Record. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Library of Congress |
Bildgröße: | 4327 px × 2426 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |