Pyramid maintenance is an on going chore.

Canada de la Virgin is an archeological site 30 km from San Miguel.  It was opened to the public last year after many years of legal wrangling.  The German who owned the land that this complex of Otomi pyramids were ondid not want to give the public access.  But he lost and a nine kilometer long road was built in the traditional style of this area - roads built by hand with simple tools.  

I am happy to report that I was able to understand at least half of what our tour guide told us during the two hour tour.  This site was used for celestial observation and it was aligned to indicate equinoxes and rainy seasons.  There is the beginnings of what promises to become a very interesting garden laid out in a swirling pattern with each section filled with plants that represent the vast knowledge of plant life by indigenous people.  This is a place that will look very different after the spring rains turn the desert landscape green.