Somehow the word reached the small community of cave explorers here in Jalisco: There’s an archaeologist in Santa Clara del Cobre, Michoacán trying to figure out how to accurately map a cave, and she needs help.

In 1894, a man living near the famed ruins of Teotihuácan, 50 kilometers from modern Mexico City, discovered a small, pre-Hispanic house whose walls were covered with beautifully colored murals.

A few days ago my friend Mario Guerrero phoned me and mentioned some archaeological ruins indicated on an INEGI (Statistics and Geography Institute) topographical map.

Regular readers of my columns will by now surely know of “The Magic Circle,” the name I have coined for an easily reachable area around Guadalajara – including Jalisco, Colima and Aguascalientes, plus parts of other Mexican states – that contains all five of Mexico’s ecosystems.

Valle de Santiago is a small town in the state of Guanajuato, located 200 kilometers east of Guadalajara. “Valle de la Luna” might be a better name for it, because it is surrounded by at least a dozen very impressive volcanic craters.

In 2009, artist Jorge Monroy surprised everyone by creating “Under the Wings of Mercury,” a stunning mural adorning the lobby of the Guadalajara Chamber of Commerce on Avenida Vallarta.