Lake Mead upper cofferdam at Hoover Dam showing depressed water level. The upper cofferdam holds the water used to generate hydroelectricity at the dam | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Williamson, Mark |
Taille de l’image : | 3456 px × 5163 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |