"The Pennine Way takes a gentle walk up the side of Padon Hill following a fence. At the highest point of the path, I took a short detour rightwards to the 5 metre high Padon Hill currick - constructed in the 1920's by the Morrison-Bell family (who lived in the nearby Otterburn Hall) this appropriately bell-shaped monument commemorates the Scottish preacher Alexander Peden. He was a Nonconformist Presbyterian in the reign of Charles II and brought his practitioners to out of the way spots to avoid persecution. The currick is embedded in a platform of stones, many of which were brought to this lonely place by the worshippers. It is well worth a close look and also gives some good views of the surrounding countryside"

http://homepages.ihug.co.nz/~fiski/pw/pennin20.html

I was at three curricks called Church Bowers the other day (and there had possibly been a great deal of stone-smashing going on there, although I can't be sure). No clear enough prehistoric link to post it here, though. This Christian angle on curricks seems, to me, to parallel the well-known Christianisation of less controversial heathen sites.