by Richard L. Thornton, Architect and City Planner
Sierra de Cobre, Edo. de Morelos
One Summer in Mexico – Part 40
At the time that I photographed stone walls and petroglyphs in a baranca (ravine) of this rugged mountain range, they meant little to me. Now they have great significance because the symbols carved onto the boulders are identical to those in the Etowah River Basin of Georgia and County Kerry, Ireland. Nearby in 2016, Mexican archaeologist found the foundations of buildings totally unlike those built by previously known Mesoamerican structures. However, Mesoamerican structures were built on tops of these ruins.