OpenStreetMap
Posted some tiles of progress on mapping UK canals at:
Canal map
Hope it is useful for checking gaps, errors etc, and for deciding where effort might be channelled (intentional pun).
Since posting I have digitised the gaps in the Kennet & Avon, so that is now complete.
Discussion
Comment from SuborbitalPigeon on 30 March 2008 at 21:05
Not meaning to be a whiny Scotsman (well, maybe just a bit), I thought that the UK wasn't just England.
Sorry, I'm a pedant.
Comment from Steve Chilton on 31 March 2008 at 11:32
Thanks for pointing this out! Now rectified and all Scottish canals included.
Comment from POHB on 31 March 2008 at 14:35
Nice. Pointed out where I'd messed up a bit of the Grand Union near me (turned it into one big lock!).
I'll be on the Rochdale in a couple of weeks time so hopefully can fill in a big chunk there.