A Primera División team plays in which city that is located in the Cyuo region of Argentina?
San Juan, Argentina San Juan (] ) is the capital city of the Argentine province of San Juan in the Cuyo region, located in the Tulúm Valley, west of the San Juan River, at 650 m above mean sea level, with a population of around 112,000 as per the 2001 census (over 500,000 in the metropolitan area).
Club La Unión Club La Unión (also known as La Unión de Formosa) is a sports club based on the city of Formosa, Argentina. The club is known for both its basketball and volleyball teams.