The full list of the Clannad North American tour has been published. The tour starts on 16th September 2012 in Halifax Canada, then from Canada way through the USA and ends 25 October 2012 in Napa CA, 24 concerts later. Have a look at the Clannad website for more information.
Update: It appears that the dates and concerts of the Clannad North American tour have been changed.The management has been unable to reschedule the shows for Halifax, St.John's, Montreal, Toronto, Buffalo, Albany, Burlington, Rochester & Providence. The tour will now begin in Ottawa on Friday 28th September 2012. For the full list of concerts have a look at the Clannad website.