Healing springs have played a significant role in the folklore of many cultures in most geographical regions. In Scotland, these natural features are referred to as ‘holy wells’ and some have been venerated since pagan times. In introducing the ‘holy wells’ of Argyll and Bute in western Scotland, this book examines, with the aid of GIS techniques, the archaeological landscape surrounding these ‘monuments’ spanning from the Neolithic to the present day; it also provides information about their geological and hydrological setting. The book sets out to address a single question: what made those ‘holy wells’ holy; although the answer is complex, multi-tiered and often unsatisfactory, it is clear that once a ‘healing’ attribute, whether physical or spiritual, is attached to a particular natural spring, communal will, from the elite to the ordinary people, have been reluctant to remove it. The second part of the book is in the form of a guidebook. While the first part aims to bring the landscape to the reader, the second part aims to achieve the opposite. Via a number of clearly laid-out itineraries, each with a particular ‘holy well’ as its focus, the book highlights the wells’ positions with respect to known domestic, ritual or burial monuments. The visitor is thereby made aware of the geological, historical and archaeological landscape that surrounds each natural spring. The healing springs of Argyll have been recorded to an archaeological standard, and are presented in an accessible manner.