​GERRÚS, a small province of Persia, situated between Khamseh and Azerbaījan in the N., Kurdistan in the W. and Hamadan in the S. Its population is estimated at 80,000, and its capital, Bíjár, 180 m. from Hamadan, has a population of about 4000 and post and telegraph offices. The province is fief of the chief of the Gerrús Kurds, pays a yearly revenue of about £3000, and supplies a battalion of infantry (the 34th) to the army.