The weight of the Aleutian Islands arctic ground squirrel is between 630~700g. The head of the Aleutian Islands arctic ground squirrel is relatively flat, and its tail is basically invisible. It can be said to be very small. Archipelago arctic ground squirrels have the habit of moulting every year, generally gray-brown in spring and reddish-brown in winter.

Aleutian Islands Arctic Ground Squirrel is mostly active during the day and is a kind of Squirrels like to live in groups. Usually, we often see them walking in groups.