Map depicting the battle on the hill of Barrabás, near Zirándaro, now in the state of Guerrero. The map shows where Don Vicente Guerrero, Commander in Chief of the Revolutionary troops of the South set up his fortifications from which his troops defeated the royalist troops in the battle for Mexico's Independence from Spain. The map is a schematic depiction of the buttresses built on a steep and mountainous landscape. Done in watercolor and ink, the map measures 31 X 43 cm.