Altamont Pass is a mountain pass located in the San Francisco Bay Area of California. It connects the cities of Livermore and Tracy and is known for its strong winds, making it an ideal location for wind energy generation. The pass is home to numerous wind turbines that contribute to the region's renewable energy supply. The area is also significant for its rich history, including the famous Altamont Free Concert in 1969, which featured performances by notable artists like The Rolling Stones. Today, Altamont Pass remains a vital transportation route and a key site for sustainable energy production.