If you’re looking for piles of dirt as the sign of a burrow, you may be surprised. Chipmunks build their homes free of dirt at the entrances and exits. The holes tend to be quite small, often only two to three inches in diameter, and may extend two to three feet under the surface.
Stumps, stony areas, fallen logs, and woodpiles are inviting spots for chipmunks. Cover provides them comfort. Patios, stairs, basements, and any well-hidden sites near a house or building will fit a chipmunk’s needs.
Being underground protects chipmunks from cats, foxes, skunks, hawks, owls, and snakes. As some of these predators grow to adult size, they have difficulty fitting into a chipmunk burrow.