In 1996, while locating groundwater sources near Nasca, Peru, David Johnson realized numerous aquifers / areas of higher permeability within the groundwater, which were not documented in modern times, crossed the Atacama Desert. As he mapped these aquifers, he also realized the ancient Nasca Lines documented their flow patterns. By studying the correlation between the geology, hydrology, archaeology and geoglyphs, he was able to interpret various geoglyphs so that they could be used to locate these water sources. During the initial investigation, he collaborated with scientists from the Geoscience and Anthropology Departments of the University of Massachusetts. Then he applied his theory to other geoglyph sites along a thousand miles of Peru and Chile’s coastal desert and eastward into the Andes Mountains. This interpretation of the coastal geoglyphs is the only one that is currently being implemented today, as it was in the past, to find the most important component needed to support life in this parched environment, water. This text discusses the correlation between the geology, hydrology, archaeology and geoglyphs.