Asturica Augusta was a Roman city in the province of Tarraconensis (later Gallaecia), corresponding to the modern-day city of Astorga, in the province of León, northwestern Spain. It was founded around 14 BC as a military camp of the Legio X Gemina following the Cantabrian Wars, and developed into a major civil center during the 1st century AD.
History and Administration
The city served as the capital of the Conventus Asturicensis, a juridical district within the province of Tarraconensis. Its strategic location on a hill at the confluence of the Jerga and Tuerto rivers, at approximately 870 meters above sea level, allowed it to control a vast territory extending from the mountains of León to the plains of the Páramo. During the 1st and 2nd centuries AD, Asturica Augusta gained considerable importance due to its role in overseeing gold mining operations in the northwest of the Iberian Peninsula, most notably the exploitation of Las Médulas in El Bierzo.
Literary Sources
The city is mentioned by several classical authors. Pliny the Elder, who visited around AD 73, described it as a "magnificent city" (Natural History, 3.28). Claudius Ptolemy included it in his Geographia as the capital of the Amachians. It also appears in the Antonine Itinerary as a mansio (way station) on multiple Roman roads, and is referenced by Bishop Cyprian of Carthage, the historian Hydatius (5th century), Jordanes (6th century), and Isidore of Seville (6th–7th centuries).
Archaeological Remains
The ruins of Asturica Augusta lie beneath the present-day city of Astorga. Notable remains include:
- Sewage system: A well-preserved Roman sewer network, discovered in 1863, still used in part by the modern city.
- Thermal complexes: Two public bath complexes known as the Termas Mayores (Major Baths) and Termas Menores (Minor Baths), featuring frigidarium, tepidarium, caldarium, and hypocaustum structures.
- Forum: A large public square covering over 31,000 m², including the so-called Roman Ergastula (a barrel-vaulted gallery), an Aedes Augusti (or curia), and remains of a basilica.
- Walls: Three successive defensive enclosures: the original legionary vallum with defensive ditches, an early stone wall (mid-1st century), and a later wall from the late 3rd to early 4th century, with a perimeter of about 2 km.
- Domus (houses): Several residential complexes have been excavated, including the Domus of the Great Peristyle, the Domus of the Mosaic of the Bear and the Birds (featuring a notable mosaic with animal and bird motifs), the Domus of the Opus Signinum Pavement, and the Domus of the Denarii.
Economy
The city's economy was heavily tied to gold mining. The arrugia system (hydraulic mining) was used to extract gold from the surrounding mountains, with an estimated production of up to six tons per year at its peak. The mining operations relied on indigenous labor under the supervision of military units. The period of greatest mining activity spanned from the Flavian dynasty (late 1st century) to the mid-3rd century.
Communications
Asturica Augusta was a major communications hub. The Antonine Itinerary records at least eight roads converging on the city, connecting it to Bracara Augusta (Braga), Lucus Augusti (Lugo), Caesaraugusta (Zaragoza), Tarraco (Tarragona), Augusta Emerita (Mérida), and Burdigala (Bordeaux). The Via XXXIV (Ab Asturica Burdigalam) later became part of the pilgrimage route to Santiago de Compostela.
Decline
With the end of large-scale gold mining under Diocletian, the city began to decline. Following the barbarian invasions, the establishment of the Suevi in Gallaecia around AD 410 brought an end to Roman domination over the city, which suffered looting by the Suevi under Hermeric.
Religion
The city's religious life included the cult of the emperor, the Capitoline Triad (Jupiter, Juno, Minerva), and the goddess Fortuna. Indigenous deities such as Mars Tilenus (assimilated to the Roman Mars) were also venerated. An early Christian community was established by the mid-3rd century, with Basilides recorded as its first bishop around AD 249.
