Salahi Wetland Nazarabad is the only wetland in the province of Alborz with an area of 10,000 hectares. This quarterly wetland is supplied from the Kordan River, and it runs dry in the heat season due to the needs of farmers, and no more water is left for watering it.Salahi Wetland Nazarabad is the only wetland in the province of Alborz with an area of 10,000 hectares. This quarterly wetland is supplied from the Kordan River, and it runs dry in the heat season due to the needs of farmers, and no more water is left for watering it.So far, 290 bird species have been registered in Alborz province, 120 of which have been observed in Salighih wetland.