San MartÃÂn is a department in the east of San Juan province (Argentina). It is predominantly a landscape of mountains in the east and significant production of wine.
The department was created on 19 September 1942 from a division of other lands, taking its name from José de San MartÃÂn. In 1996, it became the second controlled appellation established in Mendoza alongside the renowned Luján de Cuyo.