San Martín is a department located in the centre of Mendoza Province in Argentina.
The provincial subdivision has a population of about 108,500 inhabitants in an area of 1,504 km2, and its capital city is San Martín, which is located around 1,100 km from the Capital federal.
Wikipedia https://en.wikipedia.org/wiki/San_Martín_Department,_Mendoza
Coordinates -33°4'49.921" N -68°28'15.85" E