Unión San Felipe is a Chilean football club based in the city of San Felipe in the Valparaíso Region. They currently ply their trade in the Chilean Liga de Ascenso, the country's second division. The team plays its home matches at the Estadio Municipal de San Felipe, a ground steeped in local history. Founded in 1956, the club's traditional colors are yellow and blue. Their name, "Unión," reflects the unity of local clubs that came together to form the institution. The club's peak came in 1971 when they achieved a historic feat, winning the Chilean Primera División title, a moment that forever etched them into the nation's football folklore. Since that triumph, the club has oscillated between the first and second tiers. In the modern era, Unión San Felipe is a perennial contender for promotion, aiming to return to the top flight and relive the glory of their legendary 1971 campaign. The supporters, known for their unwavering loyalty, fill the stadium with a sense of hope and tradition every matchday.