Strip Mining - Coast to Coast.

Something mineable can be found practically anywhere, and the pressure on natural resources is so great in U.S. highly industrialized society that all of them are practically certain to be mined. These facts are of the gravest consequence to the nation. The cheapest way to obtain solid-state minerals from the land is by strip mining. This revolution in the technology of earth moving has swept the world in the last two decades. A combination of nitrate fertilizer and diesel oil makes a cheap and potent substitute for dynamite.