Rageh Valley, like many other valleys in Iran, has been created due to water erosion. There is a seasonal river in the depths of this valley, which over time has washed away the soil and rocks and its emergence.
Tang-e Raghez Darab or Raghez canyon is located in Fasarood section, 30 km northwest of Darab city and near Raghez village and is one of the pristine nature tourism areas of Iran.