Fiuggi Natural Mineral Water is situated in Lazio at the foot of Monti Ernici. Fiuggi and its spa complex represent the largest resource for this area. The purifying capacity of these waters has been recognized since ancient times. Prehistorically the basin of Fiuggi was a lake, which over time due to volcanic phenomena and lacustrine sedimentation filled up over time with layers of lime, clay, tuff, and ash. Today the water filters through a blanket of volcanic deposits emerging in numerous water sources.