**1. Introduction**

The Las Loras UNESCO Global Geopark (UGGp) has been chosen as one of the two Spanish geoparks studied under the umbrella of the IGCP-730 Project [1]. The focus of the study is the interaction between surface water and groundwater.

The different aspects of this research are dissected in the following epigraphs where a brief summary is presented on the geology, structure, hydrogeology and the components of the geological diversity recognized in Las Loras UGGp.
