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Hoover Dam contains 3,333,459.2 cubic meters of concrete.
Dams trigger tiny earthquakes as the ground under the reservoir adapts to the great weight of water added to it. There is no indication that these are causes of large earthquakes. Massive dams like Hoover Dam or Grand Coulee would have triggered huge earthquakes if this was the case. The largest killer earthquakes generally occur in places with no large dams.
There are many places one can take pictures at the Hoover Dam. One should speak with their tour guide at the Dam to find out the best place to take a picture.
CA
New Cornelia Tailings of Pima County, Arizona is one of the largest mine tailings piles in the world: 7.4 billion cubic feet, the New Cornelia Tailings is often cited as the largest dam structure in the country, by volume (the tailings, waste material from the mining process, were heaped into a pile that created a holding structure for future tailings, some of which were deposited in a pumped slurry, thus the tailings pile is an "impoundment" or dam). The mine that produced the tailings, the 1.5 mile wide open pit New Cornelia Mine, is owned by Phelps Dodge, and is presently in limbo (shut down in 1983). A project to mine the tailings has been proposed. The next in size is the Fort Peck Dam, 21,430 ft (6,531 m) long and 250 ft (76 m) high, on the Missouri River, NE Mont.; one of the world's largest earth-filled dams.
Grand caynon
Hoover dam impounds Lake Mead.
There are six of them on the Colorado river. Glenn Canyon dam, Hoover dam, Davis dam, Parker dam, Palo Verde diversion dam and Imperial dam.
A nickname for the Hoover Dam is Boulder Dam.
The Hoover Dam or see link
Hoover
hoover dam =D
In the hoover dam.
Hoover Dam was originally called Boulder Dam.
Hoover dam opened in 1920
Hoover Dam was built by people.
Boulder City (Nevada).