Boulder Basin is the westernmost of the three basins occupied by the

Lake Mead Lake Mead is a reservoir formed by the Hoover Dam on the Colorado River in the Southwestern United States. It is located in the states of Nevada and Arizona, east of Las Vegas. It is the largest reservoir in the US in terms of water capacity. ...

reservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including contro ...

and lies within the boundaries of

Clark County, Nevada Clark County is located in the U.S. state of Nevada. As of the 2020 census, the population was 2,265,461. Most of the county population resides in the Las Vegas Census County Divisions, which hold 1,771,945 people as of the 2010 Census, across ...

and

Mohave County, Arizona Mohave County is in the northwestern corner of the U.S. state of Arizona. As of the 2020 census, its population was 213,267. The county seat is Kingman, and the largest city is Lake Havasu City. It is the fifth largest county in the United St ...

. It includes the area between

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 Se ...

and the mouth of Boulder Canyon at Auxiliary Point. When the

is full it reaches an elevation of . It includes

Las Vegas Bay 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 ...

, Swallow Bay,

Callville Bay Callville Bay is a waterway on the northwestern side of Lake Mead in the U.S. state of Nevada. It has a marina and camping resort. Situated east of Las Vegas and upstream from Las Vegas Bay, it lies within the Lake Mead National Recreation Area, w ...

and Hamblin Bay.

References

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Boulder Basin Boulder Basin is the westernmost of the three basins occupied by the Lake Mead reservoir and lies within the boundaries of Clark County, Nevada and Mohave County, Arizona. It includes the area between Hoover Dam and the mouth of Boulder Canyon at ...

Bodies of water of Mohave County, Arizona