Where were the Aztecs located?
Teotihuacan Teotihuacan , also written Teotihuacán (] ,    ), is an ancient Mesoamerican city located in a sub-valley of the Valley of Mexico, located in the State of Mexico 40 km northeast of modern-day Mexico City, known today as the site of many of the most architecturally significant Mesoamerican pyramids built in the pre-Columbian Americas.
Mazahua people The Mazahuas are an indigenous people of Mexico, primarily inhabiting the northwestern portion of the State of Mexico and small parts of Michoacán and Querétaro. The largest concentration of Mazahua is found in the municipalities of San Felipe del Progreso and San José del Rincón of the State of Mexico. There is also a significant presence in the Federal District, Toluca and the Guadalajara area owing to recent migration. According to the 2010 Mexican census, there are 116,240 speakers of the language in the State of Mexico, accounting for 53% of all indigenous language speakers in the state.