Found this little example of what seems to be some cup-markings in that southern-realm of England, in Wiltshire:
Two distinct cups are there.
RockRich asks: "On the right image is there a horseshoe shape, or is it a natural curving fissure?"
Good question! I noticed it when I was atop of the monument, but didn't really give it much attention tbh. It seemed natural. But in the images we've got back (the large-sized ones before they're reduced) a couple give the impression of continuity which wasn't noticed when we were there. So the answer is: not sure! I'd err on the side of caution tbh, as the cracks and lines seemed more natural on first impression.
Cheers - Paul