Show ruins in caves reveal old mayan line of fortt fort washington medicos cos maya may indians developed a rudimentary maginot line generations before france built its net work of defensive tunnels according to the carnegie institution the indians used caves for defenso defense against both human and animal enemies said an institution report by dr A S pearse of duke university he said the caves contained walls that divided the tunnie tunnels lz and thereby strengthened the indians defense even after enemies had entered the cave the institution said the indians did not live permanently in caves although there is abundant evidence of early occupation of these caves these include the institution reported potsherds pots herds bones carvings excavated holes in rocks used for catching dripping water stone blinds for concealment in hunting birds and carved steps |