(31 May 2015, 8:40 pm)Jackamcardle wrote Thanks, I was just trying to figure out where it terminated, it would have been a fairly good route!
It was no different any of the routes these service replaced. In fact, I think services M23/623 (and M20/620) were more interesting as at one point they started in Gateshead and operated via Newcastle and Metrocentre towards Chopwell.