In 1970, Art Historian Acelia Garcia de Weigand found a prismatic obsidian blade in a pool outside Teuchitlán, Jalisco. A search for its origin led the Weigands to Mexico's Guachimontones archeological site.
© John Pint, 2009
Source article: Guachimontones: unearthing a lost world near Teuchitlan, Jalisco