Dahān-e Qolāmān is one of the Achaemenid sites in the eastern part of Iran. Archaeologically, it is significant since it is the only excavated Achaemenid site at eastern half of Iran and relatively revealing information on urbanization, architecture, administrative, religious, industrial buildings as well as pottery manufacturing. The most important structure of Dahān-e Qolāmān is “Building No. 3” that has attracted the attention of different archaeologists and experts on its function. Ovens and fireplaces are among most important features of the structure that culminated to high variations at period “B”. Considering finding archaeological evidences and their comparison to Zoroastrian written sources, especially Avesta, it appears that the Building No. 3 belonged to Zoroastrians from Dranka province, and the regional Satrap supervised its construction according to orthodox religious basics, while fundamentally differs from Zoroastrian beliefs of western Iran
