Course of the Colorado River into the Virgin River, which ran southward through what is now Overton Arm to join the Colorado River near the now-ghost town of St. Thomas, Nevada. At Hoover Dam, the Colorado turns due south through Black Canyon, a direction it will follow for the remainder of its course to the Gulf of California. It passes under the Mike O'Callaghan–Pat Tillman Memorial Bridge (Hoover Dam Bypass), the highest concrete arch bridge in the world, carrying U.S. Route 93 at a height of above the Colorado River. At the end of Black Canyon the Colorado widens into Lake Mohave, created by the
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