BEFORE ALL UNITS HAD CLEARED THE MVC ON I-68, PRESTON ALERTED THEM OF A CHIMNEY FIRE IN THE COMMUNITY OF HUDSON. ENGINE 320 ESTABLISHES MT. NEBO COMMAND AND REPORTS THAT THE FIRE HAD BEEN CONTAINED TO THE CHIMNEY. CREWS DROPPED BAGS OF ABC POWDER DOWN THE CHIMNEY AND A FIRE EXTINGUISHER FROM THE BOTTOM OF THE CHIMNEY TO EXTINGUISH THE FIRE. CREWS WERE ON SCENE FOR ABOUT AN HOUR BEFORE TERMINATING COMMAND AND RETURNING TO QUARTERS.