The Ortigosa granite boulder field (berrocal) Nature · Ortigosa del Monte, Alfoz de Segovia, Segovia A chaos of granite boulders declared a site of geological interest in 2006; the same stone had been quarried here since Roman times, and today the berrocal is a place to walk among blocks rounded by erosion. Photo: Arturo Francisco Barbero (CC BY-SA 4.0) What to see and do in Ortigosa del Monte