2021 Map of Boulder Canyon

About this map

Lake Mead National Recreation Area dominates this section of the desert, where the Nevada and Arizona border follows the submerged channel of the Colorado River. The topography is defined by the sharp rise of the Black Mountains and Pinto Ridge above the rising waters of Lake Mead, creating a complex shoreline of deep inlets such as Boulder Wash Cove and Gordys Cove. This modern survey illustrates the rugged interface between the Mojave Desert and the reservoir's Virgin Basin, showing how the landforms of Boulder Canyon have been transformed by the impounded river.