Based on writing of Tabari as well as other historical researches, Mihr Narseh, Prime Minister of Bahram V (421-439 AD) founded a number of buildings in the province of Ardashir Khorrah. Among public utility buildings, he built four fire temples in four villages in Baryn plains of the same province. The current paper tries to find the exact locations of those temples based on references available in historical sources, studying communication routes between the city of Bishapour and Ardashir Khorrah as well as field and archeological studies about the features of existing fire temples along the two actual routes linked these two cities. Consequently, principal archeological researches have critically been studied and suggestions were presented for determining the location of the abovementioned fire temples.