In reply to Dave the Rave:
> a very old OS Map ... 1989
Thanks for getting the week off to a depressing start!
The oldest I've still got is from 1994, and that no longer gives a name to the north top.
The best resource I'm aware of for old maps is the National Library of Scotland - warning, can lead to many wasted hours!
http://maps.nls.uk/series/index.html
According to the old 6 inch maps, it's called "Pile of Stones"
Unfortunately they haven't got as far as the north west of England yet in their ongoing digitalisation of the 25 inch series.