According to the Natural Heritage Registry Office of the Cultural Heritage of South Khorasan Province, 120 km south of Tabas and in the northernmost part of the Neyaband Wildlife Refuge, a region called the Tabas Tabernacle Land, is located. The reason why this black earth region is said is that the soil is covered with volcanic rocks and lava.
The rocks of this region are made of basalt, which is considered as an external igneous rock. Due to the activities of the Nayband fault and the eruption of these rocks by several volcanoes on the surface of the Earth, they have created a beautiful region, which is similar to the surface of the spheres The solar system. The area is 16 kilometers long and 15 kilometers wide and is one of the attractions of Tabas city. Tabas is black zone in appearance, similar to Barani Shahdad wheat in Kerman.