This is just a tidbit for you, Judy. I just saw a movie last night called "The Ruins" and it takes place in Mexico, in the jungles and is about an archeology dig at a Mayan Pyramid site. Apparently, there are still people there who speak Mayan and not Spanish.
It's a horror movie, BTW, with blood and gore, but it was interesting none the less, to see the pyramid amidst the overgrown jungle. Maybe google for a trailer on it.
Sorry for interrupting your story, but I thought of you when I was watching it.