Local Historic Railway Videos

Several interesting videos (with sync'd sound) have appeared recently on YouTube, courtesy of Peter Hutchinson.   They show industrial & main line steam in NE England in the 1960s.   To view them, Google 51A-Darlington

The Bowes Railway video includes runs up to & around Hobson pit.
These pitmen are going to a pit up the line, likely just Marley Hill.
Question - why are these fulls from Blackburn Fell drift heading west?

There are more Hobson Bank photos in an earlier post, including a driver who later became a stalwart Tanfield Railway volunteer.