The full name, oddly enough, is "The Cross of Spancil Hill". The general description of the location in the thread is correct. Nowadays there's little there but a crossroads and some ruined buildings but it was once the site of a famous horse-fair. A man called Robbie McMahon sings the "real" version of the song and can identify most of the people - never mind the places!

A good, geographically neutral ending is "And I woke to factory whistles...."!

Regards