Detailed map of the area around San Jose Piedras Blancas (Michoacan) by the Belgian Engineer Guilermo Wodon de Sorinne, an important observer of regional Mexican culture.
The map shows Wodon de Sorinne's triangulation methodology in surveying the region, which was dominated by cattle ranching.
The Belgian engineer Guillermo Wodon de Sorinne worked in the second half of the nineteenth century in Morelia. In addition to cartographical material, he supervised several renovations such as the Colegio San Nicolás, the hotel Juaninos, the Palacio de Justicio and Palacio de Sorinne.
The map is extremely rare. We note only the example referenced in Materials para una cartografie mexicana por el ingeniero Lic. Manuel Orozco (1871), #2946.