


The gas bombs and baits are worthless for these critters. You need a Macabees Old Reliable trap, a few digging tools and a little patience.
Here you can see where he came out and made the pile. He was throwing the dirt towards the top of the picture, so dig your hole near the bottom of the spot where he came up.
You will probably need to excavate a little bit with a spoon to find his tunnel because they like to plug their holes after they finish making the mess.
Set your trap and slide it into the tunnel.
Cover end of tunnel with a rock or clump of dirt.
Rake out and repair the surrounding area. You know he's toast and will not be back....maybe. Sometimes they will move on and continue to tear things up.
Wait about 24 hr., and if you see no more activity did him up.

Mike communicated that the pictures for this thread are lost (missing links) but did add this on 01/23/2018:
For digging into the main borrow use a 3” steel spoon. It provides for less digging but will leave a path wide enough for the trap.
Finding the path into the main burrow is facilitated by using a steel probe such as a small tire bar or piece of rebar. This is the most important thing to having success. Trap must to be in the main run. Dig carefully until you find it. Place the trap into the run. Don’t backfill. They will usually return to the open hole.