The San Luis Dam is a large earthfill dam located in California, USA. It was completed in 1967 and is part of the San Luis Reservoir, which serves as a critical water storage facility for the region. The dam helps manage water supply for agricultural and urban areas, particularly during dry seasons. The dam is operated by the U.S. Bureau of Reclamation and plays a vital role in the Central Valley Project. It has a storage capacity of approximately 2 million acre-feet, making it one of the largest reservoirs in California. The dam also supports recreational activities like fishing and boating.