Torca del Carlista (English: Carlista Cavern) is a large limestone cavern found in Cantabria, Spain, approximately 35 kilometres (22 mi) from the city of Bilbao. The entrance, up the slopes of the Cantabrian Mountains, is only a single metre (3 feet) wide.
The entry passage descends some 45 metres (148 ft) vertically in a narrow chimney before opening up into the cavern's main gallery. Some 520 metres (1,710 ft) long and 245 metres (804 ft) wide, the total surface area of the cavern exceeds 20 acres, or 76,620 square metres (824,700 sq ft).
Torca del Carlista (English: Carlista Cavern) is a large limestone cavern found in Cantabria, Spain, approximately 35 kilometres (22 mi) from the city of Bilbao. The entrance, up the slopes of the Cantabrian Mountains, is only a single metre (3 feet) wide.
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