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
Big Bend of the Colorado State Recreation Area Big Bend of the Colorado State Recreation Area Big Bend of the Colorado State Recreation Area is a public recreation area located in the Lower Colorado River Valley within the city of limits of Laughlin in southern Clark County, Nevada. The park is located directly across the Colorado River from Bullhead City, Arizona, and is approximately downstream of the Davis Dam. The park has two miles of shoreline and riparian areas. The majority of its consists of canyons and washes. The Fort Mohave Land Act of 1960 saw the transfer of of federal land in the Laughlin Big Bend area