MINE FIRE OCCURRED IN #1 SUBSTATION IN THE ""CHEVRON"" AREA OF THE 4900 GOLD HUNTER AREA. IT WAS REPORTED BY A MECHANIC @ 7:58 AM. MINE WAS EVACUATED & MINE RESCUE PERSONNEL ACTIVATED. MINE RESC UE TEAM HAD FIRE EXTINGUISHED & STARTED COOLING SUBSTATION DOWN @ ABOUT 11:06 AM. MSHA WAS CALLED IMMEDIATELY & WAS ON THE PROPERTY IN ABOUT 30 MIN.