(14 Apr 2014, 2:05 pm)Dan wrote It's the 'starting/finishing in the North East' line which makes me think it wouldn't be valid all the way to Carlisle, or from Carlisle to Newcastle - Carlisle obviously being the North West and not the North East!
You'd be starting your journey in the North East though, eg Newcastle-Carlisle. The same principle applies to the "County Durham" tickets that can be used to get to Newcastle, Sunderland and Middlesbrough to name a few