![Hoover Dam](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVK87wlyNVcYEQdDNeZyIGKFqCUT3kWOoCJe7-yNnZWccERauuHtU_0JDTLXfYXxWJDo7uX0RU7WZgUVq3vdIwGWK06CqbSkeQvwPKNSHer8fYUhWqEa8G5zxSr5r8PF3C_pKFV_bMhkYG/w1-h1-p-k-no-nu/Hoover+Dam+01a.jpg)
Hoover Dam
Hoover Dam, once known as Boulder Dam, is a concrete arch-gravity dam…
Hoover Dam, once known as Boulder Dam, is a concrete arch-gravity dam…
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