The Geopark of Extremadura
This is an extensive mountainous massif with a surface area of 2,544 km2 located in the southeast of the province of Cáceres between the basins of the Tajo and the Guadiana. Its highest point is the Risco de La Villuerca (1,601 m), the top of which affords a magnificent view including the mountain ranges, the valleys, the rañas, and Guadalupe to the south with the Real Monasterio as its identifying mark.
This orographic ensemble has been declared a Geopark since in September 2011 it became a member of the European and Global Geoparks Networks under the auspices of the UNESCO. Moreover, since November 2015 it is also considered to be a GLOBAL GEOPARK OF THE UNESCO. You can find more information here.
Geoparks are natural areas which preserve an outstanding geological heritage, a typical modelling of the landscape in which the rocks, minerals, and fossils can explain to visitors, nature-lovers who are not necessarily familiar with geology, the history of the Earth. Moreover, geoparks promote research, conservation, education, and social and economic development; in particular they boost geotourism. You will find enough information on these activities on this website.