Kaluts are natural features that occur due to environmental erosion in sedimentary mountains or hills of desert areas. This erosion can be due to wind or due to rain and running water in the riverbed.
At the end of the road that connects Mesr to Farahzad, there is a large hole with a different view. A large pit known to the locals as the Chal Selkanun (Selkanun pit).
There is a large land in the center of Iran that is inaccessible to our ancestors due to various phenomena such as vast sands or lands that become swampy due to rain.