Hoover Dam Hoover Dam Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. Originally known as Boulder Dam from 1933, it was officially renamed Hoover Dam, for President Herbert Hoover, by a joint resolution of Congress in 1947. Since about 1900, the Black
The Church of Jesus Christ of Latter-day Saints in Arizona Spring, Beaver Dam and neighboring Littlefield, and Lee's Ferry, all in the area between the Utah border and the Grand Canyon known as the Arizona Strip. The first effort at large-scale LDS colonization came in March 1873 when a group of Latter-day Saints was sent from Utah to the Little Colorado River drainage under the direction of Horton D. Height. The colonizers turned back, discouraged by the poor prospects, but a few returned the following year and began farming among the Native Americans at Moencopi. Local hostilities forced the colonists to leave again after a month. A year later, James