In my back yard there are about 50 or more holes. They are about 1.5 inches
in diameter and seem to be between 4 and 6 inches deep. It looks as if they
were punched in by a stick as there is no mound of dirt around them. They
have been there for several months and I have had several opinions on what
they may be. The ground is near the woods and there is a small stream about
50 feet away from them. Some are close to each other but some are about 20
feet from the others.

Photos can be found he

http://home.earthlink.net/~rmowery28146/Holes/

The shinny object near one of them is a quarter to compair the size.

They are not mole or vole holes as they only go down a few inches and stop.