Pozo Calero, Coal mine shaft in Barruelo de Santullán, Spain
The Pozo Calero features a 15-meter stone headframe and extends through 22 kilometers of underground galleries reaching a depth of 480 meters.
Construction of the mine shaft started in 1911 by Northern Railways Company of Spain, with initial operations delayed until 1918 due to World War I equipment shortages.
The mine shaft holds significance in Spanish industrial heritage as the only one constructed with ashlar masonry in the Spanish coal basin.
The facility extracted 182,000 tons of coal annually by 1924, supporting railway operations until the electrification of trains led to reduced demand.
The mine recorded numerous gas explosions throughout its operation, including a tragic incident in April 1941 that resulted in 18 fatalities.
GPS coordinates: 42.91322,-4.30586
Latest update: March 12, 2025 20:49
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