Since 2009, archeological work has been taking place in an area just south of the town center. A number of significant constructions have been excavated including structures called the Casa de Oriental (East House) and Casa de Altares (House of the Altars) and the Central Shrine of Atzompa which is larger than its counterpart in Monte Alban proper. Next to these is a complex of domestic units, sunken patios and a pyramidal platform.
However, the main find has been a 45-meter-long Mesoamerican ball court with two smaller courts next to it. These courts are surrounded pyramidal structures. The 45-meter court is the largest ever found in the Monte Alban area and investigations indicate that this was the principal ball court for the city, rather than any of the ball courts that are in the Monte Alban site itself. This ball court is situated such that players would have full view of the city located above them. The two smaller courts are secondary and probably used for training ball players.

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The site was initially explored in the 1930s by Jorge Acosta. He was only able to examine the ends of the large ball court. He speculated that the constructions at this site were ceremonial and defensive in nature, constructed in the 7th to 9th centuries to protect a growing Monte Alban.[ Formal excavation was not considered for the site until recently due to its distance from the main Monte Alban site. The site is still being excavated with plans to open it to the public in 2012. Starting in 2010, work has intensified in building the infrastructure needed for the Santa Maria Atzompa archeological site, to be opened to the public in 2012 as an adjunct to the Monte Alban site. A laboratory and security booths have been built, paid for by the INAH. The laboratory is for the testing and dating of ceramic pieces and other artifacts. Walking paths are being constructed by the state government. The archeological work displaced about 100 people from their homes, but the promise of tourism in the future has satisfied the community. As of November 2012 this site is open to the public.
For more information Google “Atzompa” or see:
Except as noted, all photos by Alan Goodin