[Aztlan] List of precolumbian archaeological sites

[Larry Poulsen]

Does anyone know where I can find a list of all of the known archaeological sites in mesoamerica? Preferably with some indication of location. I am trying to create a map to compare the number of known sites relative to the number that have been studied and or extensively excavated. Sometime back, I think there was a post about a list of the correct abbreviations for archaeoligical sites. 

Any help would be appreciated.

Larry Poulsen