A non-injury roof fall was discovered on the MMU No. 003-0 Section. The roof fall was immediately reported to MSHA hotline. The roof fall is located at CC #7 of the 2-North West mains. The roof fall began in the #5 entry and cont'd. through the #7 CC into the #6 entry. The roof fall is approx. 90-95' l. x 5-15' w. x approx. 6-8' h.