Question: Not including Arizona, what U.S. State's border is on Lake Mead located near the Hoover Damn?
Context: Hoover Dam, originally known as Boulder Dam from 1933 to 1947, when it was officially renamed Hoover Dam by a joint resolution of Congress, 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.  The dam was named after President Herbert Hoover. Willow Beach is located on the Arizona side of the Colorado River between Lake Mead and Lake Mohave.  Both Lake Mead and Lake Mohave are part of the Lake Mead National Recreation Area administered by the U.S. National Park Service. Lake Mead National Recreation Area is a U.S. National Recreation Area located in southeastern Nevada and northwestern Arizona.  Operated by the National Park Service, Lake Mead NRA follows the Colorado River corridor from the westernmost boundary of Grand Canyon National Park to just north of the cities of Laughlin, Nevada and Bullhead City, Arizona.  It includes all of the eponymous Lake Mead as well as the smaller Lake Mohave – reservoirs on the river created by Hoover Dam and Davis Dam, respectively – and the surrounding desert terrain and wilderness. Fortification Hill is a prominence adjacent to Lake Mead in the Lake Mead National Recreation Area; it is located at the northwest terminus region of the Black Mountains (Arizona), and specifically the "north region" of the Black Mountains.  It is near a southern section of Lake Mead, and just northeast of Hoover Dam.  It can easily be seen eastward across Las Vegas Bay or from the two northern mountain terminuses of Eldorado Mountains (Nevada), or the Black Mountains (Arizona). Kingman Wash is on the Arizona side of Lake Mead near the Hoover Dam.  Lake Mead, and all of its points of interest, is managed by the National Park Service and available to the public for recreational purposes. Boulder Canyon, originally Devils Gate Canyon, is a canyon on the Colorado River, above Hoover Dam, now flooded by Lake Mead.  It lies between Clark County, Nevada and Mohave County, Arizona.  It heads at western end of the Virgin Basin of Lake Mead, at .  The Canyon divides the Black Mountains into the Black Mountains of Arizona, and the Black Mountains of Nevada.  Its mouth is under the eastern end of the Boulder Basin of Lake Mead, between Canyon Point in Nevada and Canyon Ridge in Arizona.  Its original mouth is under Lake Mead between Beacon Rock and Fortification Ridge on the south shore in Arizona. Lake Mohave is a reservoir on the Colorado River between the Hoover Dam and Davis Dam in Cottonwood Valley defining the border between Nevada and Arizona in the United States.  This 67 mile stretch of the Colorado River flows past Boulder City, Nelson, Searchlight, Cottonwood Cove, Cal-Nev-Ari, and Laughlin to the west in Nevada and Willow Beach and Bullhead City to the east in Arizona.  A maximum width of 4 miles wide and an elevation of 647 ft , Lake Mohave encompasses 28,260 acres of water.  As Lake Mead lies to the north of the Hoover Dam, Lake Mohave and adjacent lands forming its shoreline are part of the Lake Mead National Recreation Area administered by the U.S. National Park Service. Temple Bar Marina is a marina on Lake Mead in the U.S. state of Arizona.  The site includes a full-service marina with boat rentals, lodging at the motel-like Temple Bar Resort, a restaurant and lounge, and an RV park.  Temple Bar Marina is the closest marina on Lake Mead to Phoenix.  Temple Bar Marina has its own post office with ZIP code 86443.  Temple Bar Airport is located near the marina. Las Vegas Bay is a bay at the western edge of Lake Mead in the U.S. state of Nevada.  The bay is located within the Lake Mead National Recreation Area to the northeast of the city of Henderson, Nevada, near the junction of Lake Mead Drive and Lake Mead Boulevard.  A public campground and boat access are available in Las Vegas Bay.  Low water levels of Lake Mead have rendered the marina there inoperable, and it has moved to the Hemenway Boat Harbor, in the south end of the Boulder Basin.  The launch ramp there has also been closed due to the water levels. State Route 147 (SR 147) is a state highway serving the Las Vegas Valley in southern Nevada.  It is signed as Lake Mead Boulevard and runs from Interstate 15 in North Las Vegas east to the border of the Lake Mead National Recreation Area.  It is not to be confused with Lake Mead Parkway (formerly Lake Mead Drive), which also goes to Lake Mead but mainly runs in southern Las Vegas Valley and carries the designation of State Route 564.
Answer: Nevada