Since gophers live and spend most of their time underground in tunnels, you may have no idea there are gophers living under your turf. Often, the presence of gopher holes and mounds is the only indication of gopher presence, so it is important to know how to identify them. Gopher mounds are fan or kidney shaped, which differentiates them from mole hills, which are round. The mounds can be up to a foot tall, and about a foot to two feet in diameter. There will be no surface tunnels connecting the mounds, like with moles.