Kalat-e Naderi

Kalat-e Naderi (Persian: کلات نادری) is a massive natural fortress located about 44 miles north of Sousia, in Kalat County, Razavi Khorasan Province, Iran.[1] ...I visited the extraordinary natural fortress of Kalat-i-nadiri and climbed its northern wall, which is one of the mountains in this range.From the crest I looked across the yellow plain, stretching northwards in level monotony, and was struck by its immensity....It is essentially a massive plateau about four miles in circumference that has been used as a fortress since before the Achaemenid era.While Alexander left to deal with a rebellious Persian chieftain, he ordered Craterus to command the majority of the army and take the fortress.
PersianSousiaKalat CountyRazavi Khorasan ProvincePercy SykesAchaemenid eraTamerlaneAlexander the GreatCraterusSir John McNeillCharles Tilstone BekeWilliam GillValentine BakerRasselasKalat, Razavi KhorasanKhanate of KalatUniversity of California Press