9 is Hebden Bridge on the Rochdale Canal - one of my favourites.
Yes true but then some would say that the Grand union was a company rarther than a Canal the main part being the Grand Junction. We need Richard Fairhust to adjudicate on this one.
Heh - there really is no right answer on what to call the constituent bits of the GU system.
The Grand Union Canal Company was effectively formed by the Regent's Canal buying the Grand Junction and the 'Warwick' canals. But despite that, people have still continued to call the Paddington-Limehouse bit the Regent's Canal. The "Grand Union" usually describes the Brentford-Birmingham main line and its various branches, though a few people still call it the Grand Junction.
Canal and river names can be confusing, but spare a thought for the publishers of the Nicholsons waterways guides, who recently(ish) issued their Severn, Avon & Birmingham book with a beautiful picture of Pulteney Bridge over the River Avon. It looked great. Shame it was the wrong Avon.