Author Ernesto Guerra and Simón Varela at the cultural Center.

Los Mochis.- Some 300 rocks scattered on the slopes of El cerro de la máscara have led researchers to establish their own theories about what might have happened in that place a thousand years ago.
Mathematical researcher, Ernesto Guerra presented his book, Fractals of the Cerro de la máscara, which is basically an examination of petroglyphs at El fuerte.
Reseachers found a remarkable artistic quality and a way of seeing the wo...
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