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Origin: Built during the Almohad period (12th-13th centuries), as part of Niebla's defensive system. Legend of the name: During the siege by Alfonso X the Wise (1262), the last Muslim king of Niebla, Aben-Mafot, sent a fattened ox out through this gate to create the illusion of abundant provisions and discourage the Christian troops. The stratagem failed, and the city was conquered.

The Puerta del Buey (Ox Gate) is one of the most emblematic entrances to the walled town of Niebla (Huelva), with great historical and architectural value. It is located on Avenida Puerta del Buey, next to the Tinto River, and forms part of the Almohad wall that surrounds the town.

It is an open-pit mine that reached approximately 200 meters in diameter and 180 meters in depth. After mining operations ceased, the quarry filled with water, forming a kind of artificial lagoon that is now one of the most unique landscapes in the area. The mine is called Confesionarios (Confessionals) because of the gossan geological formations that resemble confessionals in churches.

The flooded Valdelamusa quarry, also known as the Corta de los Confesionarios, is one of the most striking elements of the mining heritage of this district of Cortegana, in the province of Huelva.

Places of Interest Church of Santa María de Gracia: Late Gothic with Renaissance elements (16th–17th centuries). Hermitage of Nuestra Señora de la Coronada: Built on a Roman necropolis, a center of local devotion. El Morante: A natural viewpoint with Roman remains. Odiel Mills Route: Hiking trails among old flour mills and riverside landscapes. Paseo El Real: A green area along the Odiel River, ideal for relaxing. Fuente García and La Torerera: Charming and refreshing spots.

Calañas, in the province of Huelva, is a town with a rich mining history, a privileged natural environment, and a deeply rooted culture. Ancient Origins: It was a mining enclave from the Tartessian and Roman periods, with finds at "El Morante" including amphorae, tombstones, and coins. Middle Ages: Under Muslim, then Christian, rule, it passed to the Guzmán family. Livestock farming was the main activity. 19th Century: Mining revived (pyrite, copper, iron, manganese), and the railway arrived in 1886. Calañas reached 12,000 inhabitants in 1910. 20th Century: The closure of mines and subsistence farming led to depopulation. Today, it seeks to revitalize itself through tourism and culture.

my town

The Roman bridge over the Odiel River in Calañas is a historic structure that is part of the region's rich heritage. This bridge is a point of interest on several hiking trails that run through the area, allowing visitors to enjoy the natural beauty and cultural heritage of the area.