How the Earth Was Made
America's Gold (2x13)
Épisode final de la série
Date de diffusion: Mar 02, 2010
In the deserts of Nevada, research analysts will examine sedimentary rocks, which have built up over many years, to reveal how extracting several layers of rocks can lead to the discovery of gold residing deep below the surface.
- Première: Fév 2009
- Épisodes: 26
- Abonnés: 19
