Landslide, one of the natural phenomena has been more frequent in recent years. In most cases, the vast damages caused by landslides to natural resources, roads, buildings are irreparable. Every year, more than hundreds of large and small landslides in various forms occur all over Iran. Northern states, especially Mazandaran, due to the special conditions of geology, climate, underground water, the speed of land use changes, witness the occurrence of many landslides with financial and human losses. On March 19, 2018, a large landslide occurred in the village of Spiu in Galandroud region. Oe of the widest landslides of its kind in the country, it caused heavy damages.