California's San Luis Dam is a concrete gravity dam located on the San Luis Creek in Merced County, California. It was built in the early 1960s and is owned by the U.S. Bureau of Reclamation. The dam is part of the San Luis Reservoir, which is used for flood control, irrigation, and recreation. The dam is named after the Spanish explorer Luis Perez de Villagra, who explored the area in 1772. The crossword solutions for the term California's San Luis Dam are 'LUIS' and 'PEPE', both four letters.