I tried smoking out this guy and it never worked, after about ten smokes i went to what I used to use all the time, the Victor mole trap.  I let a friend borrow my old traps but never got them back so I went out and  bought four.  I put in three traps in access tunnels around his nest.  Bam, he is dead.  I recommend using a  post hole digger.  Dig between mounds, DO NOT TOUCH the trap with bare hands.  Use gloves.  Do not try to trap the mound tunnels. Set the trap between holes, per directions, mound dirt in center of hole, put sod  chunks back over the top of the trap after you set it.  I reach down and hold the trigger plate firmly against the trigger arm so no false triggers during placement.  Put the arms in line with the hole so the tunnel aligns with the trap arms.  Mound the soil to hide the trap.  Then place bucket over the hole to prevent light from penetrating.  I kick over the mounds to see if more activity occurs.  I use two and three traps per critter.  Never a fail.  Find the tunnels between mounds by staggering post holes till you find one.