This book gives a detailed report of twenty years of scientific research, investigations and studies on the site with Middle Pleistocene fossil footprints, known as “Devil's Trails" paleontological site, which is located on the north-eastern slopes of the Roccamonfina volcano, in the locality of Foresta (municipality of Tora e Piccilli, Central-Southern Italy). The fossilised human and animal footprints, radiometrically dated to 349 3 ka years ago, are described here in detail and contextualised in the worldwide ichnological panorama. In addition to the images, a dimensional dataset is also...