Tehuacalco, an archaeological site of significant historical importance, is located in the state of Guerrero, near Chilpancingo, Mexico. This site holds the distinction of being the first to be associated with the Yope people, an indigenous group whose presence and cultural practices have been largely enigmatic. Excavations in the 2000s have shed light on the ceremonial and societal structures of the Yope, offering insights into their way of life, religious practices, and interactions with neighboring cultures.