anthropology

I am working on a large Drupal project for an anthropology program at my university, which is both a research tool (a means to enter and catalog information) and a teaching tool (anthro students can search the data and do 'virtual visual ethnography,' compiling field research to write their own paper). Anyway, cool concept, very powerful... ummm... 25,000 nodes and counting.

However, I can't map any of it easily because Google Maps has little to no road data on Mexico, and geocoding is not an option (besides, most people in these villages don't have addresses).