Cilicia occupied a key position between Anatolia, Syria and the eastern Mediterranean maritime routes.
Cappadocia formed a major frontier and military region linking central Anatolia to the eastern limits of the Roman empire.
Lycia et Pamphylia connected southern Anatolia to the maritime networks of the eastern Mediterranean world.
Galatia occupied the central Anatolian crossroads through which military movement and eastern provincial networks intersected.
Asia formed one of the most urbanised and interconnected provinces of the eastern Roman world where Mithraic cults circulated widely.
Bithynia et Pontus connected northwestern Anatolia to the Black Sea through major maritime, urban and provincial networks.
Chersonesus occupied a northern Black Sea position where Greek, Roman and frontier cultures intersected at the edges of the Mithraic world.
Achaea preserves some of the earliest and most culturally complex evidence for Mithraic cults in the Greek-speaking eastern Mediterranean.
Macedonia formed a major crossroads between the Greek world, the Balkans and the communication routes of the eastern Roman empire.
Thracia connected the Balkan world to the northern Aegean through military movement, trade routes and provincial urban centres.
Moesia superior preserves frontier evidence shaped by the military infrastructure and circulation networks of the middle Danube.
Moesia inferior occupied a major position along the lower Danube where Mithraic cults circulated through military and port environments.
Dalmatia connected the Adriatic world to the Balkan interior through maritime routes, military mobility and provincial urban networks.
Along the lower sectors of the middle Danube, Pannonia inferior became a major centre of Mithraic activity in the frontier provinces.
Pannonia superior preserves one of the richest frontier corpora of Mithraic evidence along the middle Danube.
Noricum formed a key link between the Alpine world and the Danubian frontier where Mithraic cults spread through military and urban environments.
Rhaetia occupied a strategic frontier position between the Alps, the upper Danube and northern Italy where Mithraic cults circulated through military networks.
The high mountain routes of Alpes Graiae formed part of the Alpine corridors connecting Italy, Gaul and the northwestern provinces.
Alpes Poenninae controlled important Alpine routes through which military movement and religious practices circulated between Gaul and Italy.
Narbonensis connected Roman Gaul to the Mediterranean world through some of the oldest urban and maritime networks of the western empire.