Out of the corner of my eye I caught a large groundhog scurrying down into this hole.  I immediately grabbed a shovel and 3 road flares.  There were FOUR entrances to the den, I filled in 3 and then lit the flares and threw them down the last large hole.  I filled in the hole and that was it…a long dirt nap.

The second picture is from 3 days later, none of the holes were dug out so I think I got them.