(13 Mar 2014, 7:36 am)Andreos Constantopolous wrote The 177/178 were still about until the 2006 changes.
Replaced in part by a combination the 71 and the tb20
It appears that there were two different sets of 177/178 services - a circular service which ran around Washington and the Houghton-based set to which you allude. I have mistakenly presumed that it was all one service running between Washington and Houghton via Chester, Great Lumley and that well-known bastion of civility, Fencehouses.