Minerals Hub / Geography & Supply Chains / Southern Spain has been mined for longer than it has been Spain
Geography & Supply Chains · · 5 min read
Southern Spain has been mined for longer than it has been Spain
From copper smelting in Huelva in the third millennium BC to Roman silver at Riotinto and the lead veins of Jaén, the record of mining in Andalucía runs far deeper than 1479 or 1812, the dates offered for Spain itself.
Reviewed by Peter Uppal
The short version
A Junta de Andalucía heritage text on the Riotinto–Tharsis area says the Pyrite Belt's mining history goes back more than 30 centuries, and a 2003 study examined copper smelting slags from Cabezo Juré, in Huelva, dated to the third millennium BC. Britannica dates the union of the crowns of Aragon and Castile to 1479, and calls it a union of crowns and not of kingdoms. The record runs on through Roman silver at Riotinto and the lead veins of Jaén to the copper concentrate the Junta de Andalucía reports from the Pyrite Belt operations of Huelva in 2021.
Two dates for a country
Spain has more than one birthday. In Britannica's account, the union of Aragon and Castile was finally achieved when Ferdinand II succeeded to the Crown of Aragon in 1479, though it was a union of crowns and not of kingdoms. The Cádiz Constitution of 1812 opened by defining the nation itself: "La Nación española es la reunión de todos los españoles de ambos hemisferios", the Spanish nation is the union of all Spaniards of both hemispheres. On this publication's reading, measured against either date, the mining record of Andalucía is the older story by thousands of years.
A belt of sulphide ore
The Iberian Pyrite Belt is located in the southwest corner of the Iberian Peninsula, extending 230 km long and 40 km wide, from Seville, in Spain, to south of Lisbon, in Portugal. Its ores have pyrite as the main mineral phase and sphalerite, galena and chalcopyrite as major components; as a matter of mineralogy, those three are sulphides of zinc, lead and copper-iron. Throughout history, 82 sulphide deposits have been exploited to varying degrees, the biggest being Riotinto (>500 Mt) and Neves Corvo (≥300 Mt), tonnages of ore rather than metal.
A Junta de Andalucía heritage text says the minerals exploited were essentially pyrite and that in the 19th century production centred on copper and sulphur. In the 1960s, a 2008 trade-journal article says, an industrial development pole was set up in Huelva to find an outlet for the mines' pyrite.
Lower bounds, not a starting date
The ages offered differ, and the first two are stated as minimums. The 2024 review says evidence of mining exploitation in the region dates back over 5000 years. The Junta's heritage text says the belt's mining history goes back more than 30 centuries, and that Tartessians and Romans worked its silver, gold and copper. Rio Tinto plc's history page says the ancient mines of Rio Tinto date back to 3000BC. At Cabezo Juré, in Huelva, a 2003 study examined copper smelting slags dated to the third millennium B.C, and a 2017 review of research on early metallurgy says third-millennium BC societies in the Huelva area already knew highly developed mining.
At Riotinto, the archive is the slag heap.
Riotinto, from Rome to London
A 2010 archaeometallurgical study describes Riotinto as a district known and exploited since the Late Bronze Age, with silver production spanning the Phoenician period up to the second century AD. Its authors conclude that within the Roman period the production increased in scale.
Excavation of one settlement, Llano de los Tesoros (Cortalago), found Final Bronze Age and Orientalising levels at its base; from the mid-2nd century BC it was where the smelting installations were concentrated, in the Julio-Claudian period slag heaps spread across its surroundings, and it was abandoned at the end of the 2nd century AD.
Rio Tinto plc records that in 1869 the Spanish government decided to sell the Rio Tinto mines, and that on 29 March 1873 the Rio Tinto Company was registered in London with Hugh Matheson as Chairman. An IGME journal article says the mines were exploited for 82 years, since 1873 until 1954, by The Rio Tinto Company Ltd.
Lead and silver in Jaén
Further east, the Linares area of Jaén belongs to the Linares–La Carolina mining district, whose veins are often several kilometres long, with a known vertical extent that frequently exceeds 400 m, filled with banded ankerite and galena carrying 0.1 to 3 kg of silver per tonne (basis not stated).
An archaeological study of eastern Sierra Morena, which includes the district, dates intensive Roman exploitation of the region's mining territory from the mid-to-late 2nd century BC to the early 2nd century AD, with the mines reaching their greatest development in the last century of the Republic and the 1st century AD. Sources differ on earlier working. The same study says exploitation would have begun in later prehistory but finds scarce archaeological evidence of mining before the 2nd century BC; a 2021 paper says the veins' exploitation goes back 4000 years.
The 2021 paper says that from the second half of the 19th century more than half of Spain's national lead production came from Jaén province, and a 1981 paper, citing an earlier author, gives an economic total (tonnage extracted plus reserves) of 5.5 Mt of lead and 2200 t of silver for the whole district. A 2007 heritage bulletin article says the district's last mine closed in 1991.
Mining by today's official count
Spain's ministry reports, from its Estadística Minera 2024, 30,234 people working across 2,592 operations nationally, quarries included, with Andalucía leading the regions at 33.9% of production value.
The Junta's mining strategy, using 2021 data, counts 465 active mining operations in Andalucía, including quarries, a little under one fifth of Spain's, and reports that copper concentrate led metallic production at 0.89 Mt in 2021, containing 139,565 t of copper, practically all from the Pyrite Belt operations of Huelva.
What the district has kept
Andalucía's heritage law defines Places of Industrial Interest as sites, spaces, buildings or installations linked to extraction, production and related activities that deserve to be preserved for their significant industrial, technical or scientific value. In 2012 the La Tortilla mine-smelter in Linares was entered in the regional heritage catalogue as a Bien de Interés Cultural, as a Place of Industrial Interest, and heritage authorities had earlier opened protection proceedings for 65 mining-industrial properties in the district in 2003 and 60 more in 2006.
Related
- Countries — the national frame that sits over this regional record
- Major Projects — the operations that work the Pyrite Belt
- Exploration — how an old district is explored again
- Community Engagement — what a long mining memory means for a new project
- Rehabilitation — what becomes of workings once they close
Sources
- SECONDARYEncyclopaedia Britannica, 'Spain: United Spain under the Catholic Monarchs'. Section 'The union of Aragon and Castile': Ferdinand II's succession to the Crown of Aragon in 1479; 'a union of crowns and not of kingdoms'. A reference work, so tagged SECONDARY.
- PRIMARYConstitución Política de la Monarquía Española (Cádiz, 1812), article 1, transcription hosted by the Universitat de Barcelona.
- PRIMARYAlmodóvar, G.R., Yesares, L., Sáez, R., Toscano, M., González, F., and Pons, J.M., 'Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution', Minerals 9(11) 653, 2019. Section 2: location and extent of the belt; abstract: mineral composition; Introduction: Riotinto and Neves Corvo deposit tonnages.
- PRIMARYSáez, R., González, F., Donaire, T., Toscano, M., Yesares, L., Ruiz de Almodóvar, G., and Moreno, C., 'Updating Geological Information about the Metallogenesis of the Iberian Pyrite Belt', Minerals 14(9) 860, 2024. Introduction and abstract: mining evidence over 5000 years; 82 sulphide deposits exploited to varying degrees.
- PRIMARYJunta de Andalucía, Consejería de Medio Ambiente, Geodiversidad y Patrimonio Geológico de Andalucía, 'Capítulo 15. Faja Pirítica en Riotinto – Tharsis', c. 2006 (year from the URL; no title page seen). p. 302: mining history of more than 30 centuries; Tartessians and Romans; minerals exploited essentially pyrite; 19th-century production centred on copper and sulphur.
- SECONDARYRomero García, R.E., 'Obtención del ácido sulfúrico y su producción en Huelva', Técnica Industrial 275, May–June 2008, p. 65. The industrial development pole set up in Huelva in the 1960s to find an outlet for the mines' pyrite. A trade journal, so tagged SECONDARY.
- SECONDARYRio Tinto plc, 'Our history' (corporate web page, undated, read 13 October 2026). The company's statements on the ancient mines, the 1869 decision to sell, the 1873 registration and the 1954 sale. A company page citing no evidence, so tagged SECONDARY.
- SECONDARYSáez, R., Nocete, F., Nieto, J.M., Capitán, M.Á., and Rovira, S., 'The extractive metallurgy of copper from Cabezo Juré, Huelva, Spain: Chemical and mineralogical study of slags dated to the third millenium B.C', Canadian Mineralogist 41(3) 627–638, 2003, via the University of Huelva research-output record. Only the title was read, so tagged SECONDARY.
- SECONDARYRiesco García, F., review of Rodríguez Bayona, M. (2015), Revista Atlántica-Mediterránea de Prehistoria y Arqueología Social 19, 2017, p. 219. Third-millennium BC societies in the Huelva area already knew highly developed mining. A book review of a monograph published by Fundación Atlantic Copper, so tagged SECONDARY.
- PRIMARYAnguilano, L., Rehren, Th., Müller, W., and Rothenberg, B., 'The importance of lead in the silver production at Riotinto (Spain)', ArcheoSciences 34, 269–276, 2010 (UCL repository copy). pp. 269–270: exploited since the Late Bronze Age; silver production from the Phoenician period to the second century AD; Roman period defined as 200 BC–200 AD. p. 275: production increased in scale within the Roman period.
- PRIMARYGimeno Pascual, H., Iglesias García, L., Pérez Macías, J.A., and Delgado Domínguez, A., 'Nuevas inscripciones en pizarra e instrumenta incisa en el asentamiento romano de Riotinto (Huelva, España)', Onoba 13, 2025, p. 32. The Llano de los Tesoros (Cortalago) settlement: Final Bronze Age and Orientalising levels; smelting from the mid-2nd century BC; Julio-Claudian slag heaps; abandonment at the end of the 2nd century AD.
- PRIMARYAvilés-Palacios, C., 'Innovaciones y mejoras tecnológicas en la explotación de las minas de Río Tinto (1873-1897)', Boletín Geológico y Minero 119(3) 331–342, 2008 (IGME). p. 331, English abstract: the mines exploited for 82 years, from 1873 until 1954, by The Rio Tinto Company Ltd.
- PRIMARYFont, X., and Thibieroz, J., 'Los filones plumbiferos de Linares (Jaen) son continuos hasta el paleocaliche de la base del Trias', Acta Geologica Hispanica 16(4) 211–213, 1981. p. 211: the Linares–La Carolina district; vein length and known vertical extent; banded ankerite and galena with 0.1 to 3 kg of silver per tonne (basis not stated). p. 212: production important especially at the end of the 19th century.
- SECONDARYFont and Thibieroz (1981), p. 212, citing C. Bauchau (1971): a 'cota económica' (tonnage extracted plus reserves) of 5.5 Mt of lead and 2200 t of silver for the whole Linares district. A figure reported from another author, so tagged SECONDARY.
- PRIMARYArboledas Martínez, L., Contreras Cortés, F., and Moreno Onorato, A., 'La explotación minera antigua en Sierra Morena oriental y su vinculación con el territorio', CPAG 24, 111–145, 2014. p. 116: exploitation of the area's veins would have begun in later prehistory; p. 123: intensive Roman exploitation of eastern Sierra Morena's mining territory, and scarce evidence of working before the 2nd century BC; p. 131: greatest development in the last century of the Republic and the 1st century AD.
- PRIMARYFernández-Leyva, C., and Alaminos Martín, C.F., 'Reconstrucción en superficie del patrimonio geológico inaccesible de La Carolina: los filones de plomo argentífero', Estudios Geográficos 82(291) e074, 2021. p. 2: exploitation of the veins goes back 4000 years; p. 7: more than half of national lead production from Jaén province from the second half of the 19th century.
- SECONDARYColectivo Proyecto Arrayanes, 'El valor universal del patrimonio minero-industrial', PH Boletín del Instituto Andaluz del Patrimonio Histórico nº 61, February 2007. p. 67: the district's last mine closed in 1991. p. 72: protection proceedings opened (incoación) for 65 properties in 2003 and 60 in 2006. A heritage group writing in an agency bulletin, so tagged SECONDARY.
- PRIMARYJunta de Andalucía, Decreto 341/2012, de 24 de julio, BOJA núm. 147, 27 July 2012. La Tortilla mine-smelter, Linares, entered in the Catálogo General del Patrimonio Histórico Andaluz as a Bien de Interés Cultural, Lugar de Interés Industrial.
- SECONDARYMinisterio para la Transición Ecológica y el Reto Demográfico (MITECO), press release on the Estadística Minera 2024, 4 March 2026. National operations and employment, all subsectors including quarries; Andalucía's share of production value; metallic minerals' share and concentration in the Iberian Pyrite Belt. A press release about the statistic (the full 2024 edition could not be retrieved), so tagged SECONDARY.
- PRIMARYJunta de Andalucía, Estrategia para una Minería Sostenible en Andalucía 2030 (EMSA 2030), v2.1, approved by Acuerdo de 25 de julio de 2023 (BOJA núm. 145, 31 July 2023); data from MITECO's Estadística Minera de España 2021. p. 11–12: active operations in 2021; p. 18: copper concentrate and contained copper in 2021.
- PRIMARYLey 14/2007, de 26 de noviembre, del Patrimonio Histórico de Andalucía (BOJA núm. 248, 19 December 2007), Junta deposit copy. Article 26.7: definition of Lugares de Interés Industrial.
- ANALYSISANALYSIS: the comparison of the region's mining record with candidate dates for the beginning of Spain is this publication's framing; the sources date the mining, not the comparison.Non-public document · no public URL
