It is a unique phenomenon in the east of Iran, with an area of 22765 hectares. The gypsiferous wetland had a good water input in 2009, which made it possible to migrate to the lagoon for up to 14 species of aquatic bird species such as lush ducks and flamingos. As the native birds of the area, you can mention bog horns, hawks and golden eagles, reptiles, snakes, snakes, camels, sparrows, snakes, and desert snakes. The suitable vegetation for laying birds in this area has led to the migration of large numbers of migratory birds such as lush duck, black neck, gray herons, salami, and others to the shelter each year. Gaz and Halox are also plants of this wetland.
There are 14 species of mammal around the lagoon, such as: rabbits, foxes, hyenas, wolves, pikes, pamswaki, yoghirtcher and schisma. Mineral salts in the wetland have therapeutic properties for diseases such as arthritis, rheumatism and joint diseases.
The wetland, which is 85 km from the city South Khorasan
, is still alive despite successive droughts. Broad barracks, due to its low elevation level, is comparable to the area around the drainage area of the area. Due to its excessive salinity, this phenomenon has become salt lake and is a great source of life for birds and animals. Although in recent years, due to drought, the amount of water in the lagoon has been reduced, it generally has water in the fall and winter seasons and is considered a safe place for aquatic migratory birds.
This lagoon is the only drainage that does not connect to any waterways, and it is dry in the summer, and in the winter, by springing water, there is a place for the presence of birds and animals.
According to statistics, more than 5,000 migratory birds migrate to the area every year. Among these birds, the bug rug is a rare species in the world only in the margin of Iran's deserts in the provinces of Semnan , Yazd and South Khorasan. Most of this bird lives in southern Khorasan and only in the wetland gypsum lagoon, and the main place of life This bird is in the Zygophyllum eurypterum bushes.