This vole is known only from Muskeget Island, Massachusetts, an island of about 2.6 km². It lives in sandy grassland.
Its rough coat has long guard hairs with gray roots and brown tips, over yellowish-white underfur. The back is light gray, the sides hazel-brown, and the underside nearly white. Seasonal changes affect its appearance.
It inhabits sandy grassland and burrows beneath loose sand. Beach grass is common in its habitat and is also a food resource.
An extinction-risk assessment has not been added yet.