Gilavan Mud-Brick Fortress

Gilavan Mud-Brick Fortress stands in the village of Khollar Gilavan, in Shahrud District, south of Khalkhal County in Ardabil Province, and is considered one of the valuable historical monuments of northwestern Iran. This ancient structure, whose origins are attributed to the Achaemenid period, was built on a site of about 6 hectares. Thanks to its location in the highlands of the region, it played an important role in controlling the routes linking Gilan and Azerbaijan. The fortress sits at an elevation of about 1,450 meters above sea level, which in the past gave it a good view over the passing routes and the surrounding valleys.

The fortress has a rectangular plan measuring roughly 105 meters long and 66 meters wide, and its walls once stood nearly 5 meters high, with some sections still standing today. The main building material was handmade mud bricks of standardized dimensions, laid on a stone foundation, which reflects the advanced architectural knowledge of the period in which it was built. Towers placed at intervals around the fortress confirm its military and lookout function, and it was probably used to protect caravans and trade routes. Near the site, the remains of a historical cemetery from even earlier periods have also been identified, adding to the archaeological importance of the area.

Gilavan Mud-Brick Fortress can be reached via the village of Gilavan in the Shahrud area of Khalkhal, and the route passes through mountain scenery and forested landscapes. The best time to visit this historical site is spring and summer, when the weather is mild and the surrounding nature is at its most beautiful. Because of natural erosion and a lack of proper protection, this valuable site urgently needs attention in terms of restoration and maintenance, and visits should be carried out in line with responsible nature-tourism principles and with respect for the historical fabric.