Dramtic sky above a Californian wind farm

View of The Altamont Pass Wind Farm, located in the Altamont Pass of the Diablo Range in Northern California. It is one of the earliest wind farms in the United States. At one time the largest wind farm in the world in terms of capacity. Altamont Pass is still the largest concentration of wind turbines in the world, with a capacity of 576 megawatts.