The Fuentillejo maar is located in the Central Spanish Volcanic Field of Campo de Calatrava. Fuentillejo maar-lake has been a closed system and contains over 142 m of lacustrine sediments (Martín-Serrano et al., 2009). Geochemical (element analysis, molecular analysis of organic compounds), physical, palynological, stable isotope analysis, mineralogical and sedimentan/ facies analysis were performed to characterize the sedimentan/ record in the 57-59.3 m depth interval of core FUENT-1. These proxies reconstruct the paleoenvironmental and paleoclimatic processes which controlled vegetation patterns, lake water level and deposition of sedimentan/ facies occurred during the Last Interglacial period