Photographer's notes: "Lake Mead remains the largest reservoir in the United States. The white banding is caused by mineral deposits that show how high the water level would be, if the reservoir were full."

Initial excavation for future substation, operations center, and construction block with Mt. Clark in the background

Early excavation for Unit 1, substation, operations center, and construction block

Detail of initial excavation and ground preparation near existing grid transmission lines

Power block construction and service roads of Unit 1 with Interstate 15 and Ivanpah dry lake racetrack in the background

Pad preparation for substation with Unit 1 construction in the distance

Unit 3 power block construction with view toward Primm, Nevada