Villa Unión is a city in northwestern Argentina and the main settlement of Coronel Felipe Varela Department with a population of 12,263.

At the beginning of the seventeenth century, there was a settlement of white people that can be considered as the first inhabitants of Hornillos, present day Villa Unión.

The name Villa Unión takes its significance from the three Chilean families who were expelled from Guandacol and moved to Los Hornillos in 1880, where the local residents did not only give them protection, but also gave them ownership of land so that they could settle down.

The grape is of high alcohol content, favored by the excellent climate of Villa Unión, with the average annual temperature of 17 °C, a maximum of 42 °C and absolute minimum of -7 °C[citation needed].

In the surrounding area of Villa Unión there are several mines, extracting clay, barytes, cobalt, galena, iron, pyrophyllite, lead, coal, talc and two marble quarries.

In the recent years, Villa Unión has been growing as a base for Ecotourism, offering a variety of tours, circuits and destinations, the most notable one being the impressive Talampaya canyons.

The international route from Villa Unión to Copiapó in Chile is under construction and will soon be opened, with a paved road and a tunnel, allowing crossing of the Andes the whole year round on good roads, which is believed to improve life in the city of Villa Unión in the coming years, for its new strategic position for international trade.