This story by monikaguwalani has 3 pages.
Picture of Hoover Dam
Caption: Rising 726.4 feet, Hoover Dam was the world's tallest dam when it was built in the 1930s. These days, it's the second-tallest dam in the U.S., having been surpassed by the 770-foot-high Oroville Dam in Northern California in 1968!
Visit this page to view the story.