Getting rid of gophers and getting rid of moles require two very different methods of attack, so you will need to know which one you’re up against before you start making a plan. You’ll know if it's a gopher because the holes will be from where the gopher comes up and steals food. They’ll also eat plant matter that’s hanging out below the ground too, as they build their aptly-named “gopher towns”, consisting of intricate burrows and tunnels quite deep underground. Moles do not eat the plant matter as they’re creating those tunnels.
Both creatures are capable of wreaking havoc as they go about their underground business, often undetected for long periods of time too. If you have cables for utilities running underground, they can chew right through them, cutting power and other things to the home or building. Water lines are also at risk, which can cause flooding.