Mariachi Aztlán returns to Greeley by popular demand, for the third consecutive year, for a concert with members of the Ballet Folklorico UTRGV and a special appearance by Nathania Flores, Mariachi Vargas Extravaganza National Grand Champion Vocal Winner from Edcouch-Elsa, Texas. Mariachi Aztlán is the most highly acclaimed mariachi ensemble among colleges and universities in the world. Based in Edinburg, Texas, this award-winning group of outstanding young artists hails from the University of Texas Rio Grande Valley.