El Palmillo is a Mesoamerica

Mesoamerica

Mesoamerica is a region and culture area in the Americas, extending approximately from central Mexico to Belize, Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica, within which a number of pre-Columbian societies flourished before the Spanish colonization of the Americas in the 15th and...

n Classic Period

Mesoamerican chronology

Mesoamerican chronology divides the history of pre-Columbian Mesoamerica into several periods: the Paleo-Indian , the Archaic , the Preclassic , the Classic , and the Postclassic...

 archaeological site

Archaeological site

An archaeological site is a place in which evidence of past activity is preserved , and which has been, or may be, investigated using the discipline of archaeology and represents a part of the archaeological record.Beyond this, the definition and geographical extent of a 'site' can vary widely,...

 located in the Valley of Oaxaca

Valley of Oaxaca

The Valley of Oaxaca is a geographic region located within the modern day State of Oaxaca in southern Mexico. The valley, which is located within the Sierra Madre Mountains, is shaped like a distorted and almost upside-down “Y,” with each of its arms bearing specific names: the northwestern Etla...

, associated with the pre-Columbian

Pre-Columbian

The pre-Columbian era incorporates all period subdivisions in the history and prehistory of the Americas before the appearance of significant European influences on the American continents, spanning the time of the original settlement in the Upper Paleolithic period to European colonization during...

 Zapotec civilization

Zapotec civilization

The Zapotec civilization was an indigenous pre-Columbian civilization that flourished in the Valley of Oaxaca of southern Mesoamerica. Archaeological evidence shows their culture goes back at least 2500 years...

 which was centered in the valley and the surrounding highlands of the present-day state of Oaxaca

Oaxaca

Oaxaca , , officially Estado Libre y Soberano de Oaxaca is one of the 31 states which, along with the Federal District, comprise the 32 federative entities of Mexico. It is divided into 571 municipalities; of which 418 are governed by the system of customs and traditions...

, Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. Located on a hilltop in the eastern Tlacolula arm of the valley, El Palmillo is just to the south of the pre-Columbian site of Mitla

Mitla

Mitla is the second most important archeological site in the state of Oaxaca in Mexico, and the most important of the Zapotec culture. The site is located 44 km from the city of Oaxaca. in the upper end of the Tlacolula Valley, one of the three that form the Central Valleys Region of the...

 and to the east of the major Zapotec regional center, Monte Albán

Monte Albán

Monte Albán is a large pre-Columbian archaeological site in the Santa Cruz Xoxocotlán Municipality in the southern Mexican state of Oaxaca...

.

A major excavation at the site has been ongoing since 1999, led by Dr. Gary Feinman and Linda Nicholas of the Field Museum of Natural History

Field Museum of Natural History

The Field Museum of Natural History is located in Chicago, Illinois, USA. It sits on Lake Shore Drive next to Lake Michigan, part of a scenic complex known as the Museum Campus Chicago...

.