This site has some nifty pix.
From May to November 2004, Max & Bailey - two Golden Retrievers - will journey over 25,000 miles through all lower 48 states of America in their Harley-Davidson sidecars, bringing attention to the special needs of people with disabilities and highlighting the many ways that a Guide or Assistance Dog can help them lead more independent lives.
http://www.hogsfordogs.org/