Cuyo Spanish
Cuyo Spanish or Cuyano Castilian is the dialect of Spanish that evolved in the historical province of Cuyo and that is now spoken in the Argentine provinces of Mendoza and San [Juan Province, Argentina|San Juan]. To a lesser extent, it is also spoken in the provinces of San [Luis Province|San Luis] and La [Rioja Province, Argentina|La Rioja]. Cuyo Spanish shares a series of common traits with Chilean Spanish due to settlement history and commercial ties. Later on, under the Argentine Republic, Rioplatense Spanish, the dialect of Buenos Aires and Uruguay influenced Cuyo Spanish.