Map of Adurbadagan and its surroundings during the Sasanian era.
العربية:  مقاطعة أدورباداجان الساسانية (تقابل تقريباً أذربيجان الإيرانية اليوم) ومايحيط بها
Map taken from DEMIS Mapserver, which is public domain, the rest is self-made.Works Cited:

Adurbadagan during the late Sasanian period: A study in administrative geography by Mehrdad Ghodrat-Dizaji
Northern Territories of the Sasanian Atropatene and the Arab Azerbaijan by Arsen Shahinyan
The Iranian Expanse by Canepa
Cambridge History of Iran vol 3 part 1 and 2
A Reinterpretation of the Sasanian Relief at Salmas by Ehsan Shavarebi
Own work
HistoryofIran