Lake Mead was formed by the completion of Hoover Dam on the Colorado River in 1935. The lake covers 1.5 million acres on the border of Nevada and Arizona. Below Hoover Dam, the river flows again through Black Canyon, where springs flow into the river from side canyons. Then the Davis Dam at Laughlin forms Lake Mojave. These photos were taken from 1996-1999. The water level in Lake Mead is 100 feet lower today.