X marks the spot. The phrase originates from the early days of press photography where the scene of a crime was marked with the letter X. So when I look up Cathkin Braes on Harry Bell’s Glasgow Network of Aligned Sites, I’m intrigued to find a large X crossing the site, situated – it’s claimed – on the thirteenth hole of the Cathkin Braes golf course.

One line of the X passes through the Camphill Earthwork from Mains Castle…