Groundhog - Mammal
Basic information and drawing.

Groundhogs at HogHaven
Learn all about a colony of groundhogs that live in Delaware. Includes videos, sounds, pictures, and stories.

Groundhogs Day
Information about the animal and the traditions surrounding Groundhogs' Day.

Woodchuck or Groundhog Fact Sheet
Fact sheet from Maryland Animal Bits.

Official Groundhog Site
Games, contests, prediction records, links, and Punxsutawney Phil's family.

Woodchuck
Basic information, conflicts, and public health concerns.