We are interested in helping you as much as we can, but we need more information. If you can send us photos (take with a ruler or coin in the picture) by using the Choose File tabs below that would be most helpful.
How big (wide) are the holes? How many? Where abouts?
Do they go straight down, if so, how deep? Do they quickly turn at an angle?
Are there piles of soil?
We don't have gophers in Maryland. The closest thing might be a groundhog but their holes are pretty large. We do have moles (which do some tunneling but are considered beneficial) and voles, which eat plants and can be a problem if there numbers get high enough.
There are also other possiblilities, including other mammals or even large insects or frogs emerging, that are more noticeable because our grass/weed cover tends to be thin right now.
Take a look at this page and investigate some of the possibilities: