Sehollan Cave is one of the most important and unique natural caves of the country and West Azerbaijan Province which has been known by the inhabitants of the area since long time ago. Even before Christ, some parts of the area were settled by people. This cave was first discovered by French Jacques de Morgan, and then it was investigated by Iranian speleologists. Archeological researches and excavation operations led to the discovery of human artifacts from Centuries 4 and 5 BC. This cave is registered in the list of Iran's National Heritage.
In Kurdish Language, "Sehollan" means "frost", and local people also call the cave "Kooneh Kotar", i.e. pigeon nest, for there are many pigeon nests inside the cave.