These cinch traps are designed to be set from the surface.
https://www.amazon.com/Cinch-Gopher-...ct_top?ie=UTF8
I have a few almost identical traps made by Gopher Goner but don't use them. The Gopher Goner traps need some maintenance to keep the tripping mechanism clean and working.
I use the Victor Blackbox gopher trap
https://www.amazon.com/Victor-Black-.../dp/B000FBMFDO
This trap can also be set from the surface. You just need to square off the hole to get a good fit for the trap. Make sure you set a hair trigger for any trap you use.
The other option is poison. I don't use poison because I want to know for sure that I got the rascal and also don't want to risk secondary kill.
Either way you need to go after it as soon as possible.