The Kurit Dam is a masonry arch dam located 34 km southeast of Tabas, Iran near the village of Kurit. The dam is an early arch dam constructed by the Mongolians around 1350 AD. The dam was originally 60m tall but 4m of height was added in 1850. The dam was constructed in a very narrow gorge and was the tallest in the world up until the early 20th century. The dam also contained a sophisticated water outlet system for its time.