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Lake Mead Geography


There are nine main access points to the lake. On the west are three roads from the Las Vegas metropolitan area. Access from the northwest from Interstate 15 is through Valley of Fire State Park and the Moapa River Indian Reservation to the Overton arm of the lake.

The lake is divided into several bodies. The large body closest to the Hoover Dam is Boulder Basin. The narrow channel, which was once known as Boulder Canyon and is now known as The Narrows, connects Boulder Basin to Virgin Basin to the east. The Virgin River and Muddy River empty into the Overton Arm, which is connected to the northern part of the Virgin Basin. The next basin to the east is Temple Basin, and following that is Gregg Basin, which is connected to the Temple Basin by the Virgin Canyon. When the lake levels are high enough, a section of the lake farther upstream from the Gregg Basin is flooded, which includes Grand Wash Bay and the Pearce Ferry Bay and launch ramp. In addition, there are two tiny basins, the Muddy River Inlet and the Virgin River Basin, that are flooded when the lake is high enough where these two rivers flow into the lake. As of now, however, these basins remain dry.

Jagged mountain ranges surround the lake, offering somewhat of a startling but beautiful backdrop, especially at sunset. There are two mountain ranges within view of the Boulder Basin, the River Mountains, oriented north-west to south-east and the Muddy Mountains, oriented west to north-east. From the Virgin Basin, you can view the majestic Bonelli Peak towards the east.