Review for Diamond Jo Casino Dubuque Review For Tree Bar Google User May 29 '18 at 16:54 We really enjoy our trips there. Very professional casino. We were there for Memorial day and it would have really been proper if the management would have recognized our veterans and military during that day just something to think about. Every where I looked around I saw a veteran and I am sure they and I would like to hAve heard that. View full site to comment or like