Q. What is a stone pillar?

Answer

A stone pillar is a tall, usually vertical element made of stone, brick, metal, etc. that holds up a roof or has an aesthetic purpose. Distinct peak formed by a tall, thin, usually sheer rock column. An earth pillar is "an upright, free column of soil that has been shielded from erosion by a natural cap of stone on top," according to the Oxford Dictionary of Geography. Common examples can be seen in the southern Tyrol, where gully erosion has carved through boulder-rich moraines. Another form of earthen pillar is the hoodoo. The Awa Sand Pillars and avolja Varo are two types of earth pillars.