Kim E. wrote:

.... About how big is a groundhog hole anyway, because we
have tons of holes in our yards, but they all seem too small for our
giant groundhog (i assumed they were snake or chipmunk holes).

-kim





Probably about 5-6" across. The hole will go down at an angle, then make
a turn and probably another turn, so the general direction of the burrow
is not indicated by the direction of the outer part of the hole.

One hole will be fairly easy to find: it's the hole that the groundhog
uses to look around and check out the safety of foraging, and it'll be
close to the garden. It's generally under a shrub or partially hidden.
The tunneling spoils will be thrown out another hole which will be
hidden as well as possible under shrubs or dense undergrowth or even
under a porch or shed. The burrow might have an occasional side tunnel
that leads to the surface with a very small hole, not enough to get out
of, but enough to provide some air. The burrow might be up to 100' long
between exits.

The long tunnels don't respect property boundaries, so one or more of
the exits could be on a neighbor's property (or several different
neighbors).