Hoces del Río Duratón Natural Park (Duratón River Gorges) Nature · Sepúlveda, Comunidad de Villa y Tierra de Sepúlveda, Segovia The Hoces del Río Duratón natural park protects the canyon that this tributary of the Duero has carved into the limestone rock of the north-east of the province of Segovia, along its middle stretch between Sepúlveda, Sebúlcor and Carrascal del Río, with walls up to a hundred metres high. Declared a natural park on 27 June 1989, it covers 5,037 hectares and has been part of the Natura 2000 network as an SPA since 1991 and an SCI since 1998. It is home to the largest European colony of griffon vulture, with 575 pairs recorded in 2003, and preserves notable heritage, including the hermitage of San Frutos and the monastery of Nuestra Señora de la Hoz. Sepúlveda, declared a historic-artistic site, is home to the park's visitor centre. Photo: Carlos Delgado (CC BY-SA 3.0 es) What to see and do in Sepúlveda