Geology of National Parks, 3D and Photographic Tours
Hoover Dam was constructed in the early 1930s with a vision of bringing power, water, commerce, and development to what was then mostly arid wilderness of the interior Southwest. It crosses the Colorado River at a narrow point west of the Grand Canyon. The reservoir that formed behind the dam is Lake Mead.
Statistics of the dam:
Height: 726.4 feet (221 m)