My neighborhood has an extremely bad mole problem. The only yards that don't have mole holes are the homes where people let their cats go outdoors. I think it's just the smell of the cats that keeps the moles away because my cat doesn't hunt them.
I ran across this recipe for getting rid of those nasty moles and thought there's others out there that have a yard full of mole hills like I do that may find some use in it. I haven't tried it yet myself, but if you have tried this recipe or others that have worked, please post a quick note and let us know how it worked for you.
If you have holes in your lawn from moles and chipmunks, put used cat litter (from box) down the holes This will solve the problem. I do this and it works