Castronuño is one of the main tourist destinations in Castilla y León. It is located in the heart of the Castronuño - Vega del Duero Natural Reserve, the only natural reserve in the province of Valladolid.

The meander formed by the Duero River as it passes through Castronuño defines the spectacular silhouette of a town immersed in nature. From the different viewpoints located along the paths, the core of the reserve can be seen.

Looking out from the viewpoint of Parque de la Muela allows you to discover the greenest and most humid views of the area, in contrast to the yellowish tones of the dryland that usually characterize the Castilian landscape.

The Church of Santa María del Castillo, from the 13th century, which dominates the course of the Duero, stands out for its heritage value. It is a late Romanesque jewel with Gothic influences, declared a historical-artistic monument (B.I.C) in 1962.

Location

The municipality of Castronuño is located to the southwest of the province of Valladolid, on the left bank of the Duero River, and covers an area of 125.70 km2, with an average altitude of 700 m.

It is bordered to the north by the terms of San Román de Hornija, Pedrosa del Rey, and Torrecilla de la Abadesa; to the south by Vadillo de Guareña and Alaejos; to the east by Pollos and Siete Iglesias de Trabancos; and to the west, in the province of Zamora, by Toro, Villanueva del Puente, and La Bóveda de Toro.

The main population center is the Villa de Castronuño, which is developed supported on its southwest side on the regional road 112 from Alaejos to Toro, between Kilometers 10 and 11, and on its north side on the Duero River from which it rises on a steep slope.

It is practically located in the geometric center in relation to the municipal area, and occupies an average horizontal surface of 39 hectares. Geographically, it is located at 41° 23' north latitude and 5° 16' west longitude, with reference to the meridian of Madrid.

It is 56 kilometers from the capital of the province, 49 km from Zamora, 60 km from Salamanca, 27 km from Tordesillas, and 20 km from Toro.