Going by this matchbook, I'd say that the circular logo is the cross-section of a tree trunk.
jericl cat@flickr.com
You can see a menu for The Redwood House
here - it also features tree trunks.
KevinW - when you edit posts that you're quoting, can you please leave the [/QUOTE] line at the end? it makes it clearer which bits are quotes and which bit are new, and also includes a link back to the original post. You can always go back and add them.