What is "zacateco"

The Zacatecos (or Zacatecas) were an indigenous people inhabiting part of northern Mexico, one of the peoples called Chichimecas by the Aztecs. They lived in most of what is now the state of Zacatecas and the northeastern part of Durango. They have many direct descendants, but most of their culture and traditions have disappeared with time. Large concentrations of modern-day descendants may reside in Zacatecas and Durango, as well as other large cities of Mexico.