Lake Chapala has been Mexico's largest freshwater lake since the desiccation of Lake Texcoco in the early 17th century.
It borders both the states of Jalisco and Michoacán, being located within the municipalities of Ocotlán, Chapala, Jocotepec, Poncitlán, and Jamay, in Jalisco, and in Venustiano Carranza and Cojumatlán de Régules, in Michoacán. From Wikipedia
