I have one, but we are in a cul-de-sac unfortunately. So eighbors o ly 10 orzo feet awY we have to use a quiet tool to rid the critters. Yep woodchuck are very very hard to get. Any little noise or movement and they are gone. I had to put a tarp on our deck railing that I could duck down behind just to get out the door and over to where I could get a chance to see the wiley creature.
We tried havahart traps, but nope, they will not go in. No matter what bait we used
Now I think we have a rat in the garden. My eyes aren’t quite good enough to see them fro a distance though
You might have luck with Tomcat mouse killer. It’s a bag of green chunks and a groundhog just might eat a bunch of it. We use it for too many chipmunks and it works great. No cats anymore and the neighbors cats are getting lazy and don’t come over as much. We gave our have-a-hart trap away years ago, caught one with it many many years ago - not easy. I actually had to enlarge their biggest trap on one end and a female still barely it in.