Thanks guys,

I wondered about that although at the time I was really thinking about how you put something over the entrance more from a protection kind of viewpoint. I looked at the site referenced and they seemed to place an emphasis on using logs big enough that is someone walked over them, they wouldn't realize anything was under them. I started thinking about the entry hole and had visions of Earl Bassett and a prairie dog hole in the movie Tremors. Just made me wonder how to handle it.

Thanks,
LW