When Ramblin' Jack Elliot introduces this song he says it is the fave
song of his dog Cesar, who he claims used to help him drive when on tour.
http://video.google.com/videoplay?docid=2172043991928853919
(note the extra verses in teh video)
http://ramblinjack.com/

and i just remembered the statue is in Ft. Benton Montana
and is the dog of a sheepherder...which is what "Sheps"
are the best at...http://www.roadsideamerica.com/story/4367
http://www.roadsideamerica.com/pet/shep.html
http://www.waymarking.com/waymarks/WM1MF4
http://www.gis.net/~shepdog/BC_Museum/Changing/SheepDogMemorials/Monuments.html

there is another story about a dog in silverton oregon..Bobbie

and there is Grey friar's Bobbie...disney made a movie about him
http://www.greyfriarsbobby.co.uk/
http://en.wikipedia.org/wiki/Greyfriars_Bobby