Mineral de Pozos
If there's time, consider making the trip out to Pozos, founded in the 16th century and now a semi-ghost town about an hour away from San Miguel. During the heyday of Mexican silver, Pozos was the place where miners would bring their ore to be melted down for shipping back to Europe. There are about 500 mines in the immediate area, many still open to the elements (and tourists). It was one of the first places in Mexico to have electricity as well as a training hospital. Those days are gone, however. The ovens are silent and the 18th century mansions and haciendas around town are in ruins, making for great photo shoots. Artists from San Miguel tried to establish a beachhead here years ago, setting up galleries and workshops. Some galleries remain and there are new boutique hotels, but the town survives off the music festivals that come here throughout the year. The area has good mountain biking and great mine exploring if you have the nerve (and a flashlight). Check out the collective that makes pre-Hispanic musical instruments.