Terminal Classic West Mexico & Post-Classic Maya. Monte Alban Chichen Itza. Location of Monte Alban. Map of Monte Alban. Early Monte Alban. Period I: 500 - 200 BC The most prominent Zapotec site in the Valley of Oaxaca during the Late Formative period was Monte Albán.
The Estela Lisa, or Monument 9, from the South Platform depicts a procession of four individuals who proceed toward a figure who is wearing a typically Zapotec headdress. The four individuals, however, wear costumes, carry implements, and are identified by glyph-like tags that are distinctly Teotihuacano. http://www.utexas.edu/cofa/a_ah/dir/precol/monte_alban.htm