Focusing any mineral exploration program requires of preliminary information to know where to realize the search, and subsequently relies in a more robust data set to reduce the area in a more manageable piece of land. Some of the information is of public origin, some other has to be bought, and at later stages most has to be generated.
Luckily for national and international companies, the government in Mexico has been investing for decades in the realization of studies that generate a great load of useful information. The Servicio Gelogico Mexicano, SGM (Formerly the Consejo de Recursos Minerales, or CRM) has not only done this in a fairly competent way, but has also put much of this information available online on its website, through GeoInfoMex. You can find lots of good geologic, geophysical and geochemical information in this site, some of which can be easily downloaded. As it happens, some information is temporarily available in the website, and later removed without explanation, so if you see anything you need, the recommendation is to download it before it disappears. It also happens with the “view only” data, like the 50K scale geochemical data points that no longer can be viewed.
You can also download the topography in 250K and 50K scale sheets, in Raster or GIS format from the INEGI website, both of which are really useful.
At Gambusino Prospector we have downloaded and compiled a lot of that information in a manageable GIS format that helps us to focus better the exploration efforts and produce worthwhile targets