(Persia Digest) – Seb Fort is the tallest adobe fort in eastern Iran, dating back to the Safavid period over 400 years ago. The use of a plant seed called “Tuteri” in its construction has kept it intact in the passage of time.
Seb Fort, the tallest adobe fort of Iran in the east of Baluchistan Province, is also known by its other names of “Sib”, “Kalaseb”, or “Seb”. The Fort dates back to the Safavid era in the 16th century and is located in the city of Saravan, Seb and Souran County. Seb village, where the Fort gets its name from, is a 10km drive from the southeast of Souran, and a 45km drive from southwestern Saravan.
Seb is constructed on two floors. Its defensive wall is over 30 meters high and seven meters wide. The “king’s seat” is on top of the Fort; it is said that its defensive wall contained fourteen towers. The Citadel had four towers which were destroyed during a war.
The main features of the Fort include expansion joints in the main building, the king’s seat, water available on the top floor, terracotta water piping, and building materials such as mudbrick, mud straw, palm tree wood, and inlaid doors.
Seb Fort has been constructed on a low-lying rocky hill, measuring 23 meters in height. The building tapers towards the top, giving it an unfinished pyramid shape. The rooms are built on two floors and come in different sizes according to their usage. Niches and alcoves used as safes form their common trait.
Some of the rooms have an alcove in the southeastern corner hiding a stairwell leading to a gap a couple of meters higher. This was apparently used to hide a spy to guard the king.
Seb Fort has a labyrinth of secret passages the escape route from which is laboriously hidden and difficult to find even if you tour the place a few times. Other spaces in the building include a cellar, kitchen, separate sanitary facilities for men and women, and a skylight.
Master builders have mustered their experiences in building the Fort by using the seeds of a plant growing locally called “Tuteri” to mix with the mortar and obtain an adhesive substance resistant to the severest rains and monsoons in Baluchistan once it has dried.
A well has been dug in the middle of the central courtyard in the heart of the rocks to provide drinking water for the Fort inhabitants. There are ten rooms built here around the central courtyard. Seb was registered as a national heritage by the Cultural Heritage Organization of Iran in 1966, under no 1751.