Re: Pocket gophers how do you get them to pop up???
Assuming the idea is to get some target practice, I don't have any help. However if you're trying to get rid of them altogether you can try something I use on moles. Juicy Fruit gum. Moles (and most other rodents, supposedly) love the smell but can't digest it. So I dig up the mounds, tuck pieces of gum in the tunnel, and close the mound back up. They eat it, get ultra-constipation, and die.
Lots of folks say it's a wives tale, but it works for me, sometimes it takes a few rounds depending how many moles/gophers there are.