Is This a Groundhog?

Not All Marmots Are Groundhogs

Susan C. Sam* and Joseph M. Sam
*Corresponding author – goodlandgroundhog@yahoo.com

The North American groundhog (Marmota monax) is the only species among the 15 recognized marmots that can correctly be called a groundhog.

Over many years, my husband and I have conducted extensive observational work focused on groundhogs, developing a deep familiarity with their physical characteristics and behavior. In reviewing a wide range of materials—including educational publications, wildlife videos, and stock images—I have identified a recurring pattern: other members of the squirrel family, particularly prairie dogs (Cynomys spp.) and non–North American marmot species such as the Alpine marmot (Marmota marmota), are frequently presented as groundhogs.

Accurate species identification is essential for ecological literacy and public understanding of wildlife. When a familiar species like the groundhog is consistently misrepresented, it can contribute to broader confusion about species differences and distributions.

This page highlights species that are commonly mistaken for groundhogs, including other marmots and closely related rodents, and explains how to tell them apart. Do not rely on color. Fur color can vary widely—even within the same species—due to molting, lighting, season, and natural individual differences. Some groundhogs may appear unusually light or dark. Color alone may lead to misidentification.