Goméz, Esteban Montes. "Map of El Salvador with Specific indigenous communities in El Salvador, and the archaeological zone of Chalchuapa in western El Salvador. The Department of San Vicente is also highlighted." IN Archaeology of the Colonial Period Gulf of Fonseca, Eastern El Salvador" PhD Diss. University of California, Berkeley. 2010. pg. 35. https://escholarship.org/content/qt3h6908bz/qt3h6908bz_noSplash_63ed1d6868d6a9d562c348d2708ea5fb.pdf