In developing countries where agriculture serves as a backbone of the economy the availability of groundwater resources is crucial. However, the high cost associated with conventional field based groundwater exploration techniques has made the assessment of these resources difficult. This book, therefore, provides an integrated remote sensing and GIS approach to assess the groundwater potential and a qualitative aquifer characterization and conceptualization technique to evaluate the role of faults and fractures on groundwater flow in a volcanic terrain. The analysis approach should help shed some light on Hydrogeological conceptualization of aquifers, groundwater occurrence and flow controlling factors, their exploitation using satellite remote sensing data and GIS, and should be especially useful to professionals in Earth sciences, remote sensing and GIS ,or anyone else who may be considering groundwater exploration and assessment in general.