What is "bijar"

Bījār (; , ) is a city in and capital of Bijar County, Kurdistan Province, Iran. At the 2011 census, its population was 47,926, in 14,970 families. With an elevation of 1,940 metres, Bijar is called the Roof of Iran. Bijar is known internationally for its elegant and ancient carpet and rug designs. The term bijar could be a variation of bajar (i.e. city in Kurdish) and the complete name of the city is Bijar-e Garrus (city of Garrus). Among other suggested etymology for bijar are bid-zar (land of willow tree) which is linguistically unlikely. Bijar is known internationally for its elegant and ancient carpet and rug designs.